December Traffic Impact - and Site Traffic Assessment: Proposed Amarosa Extension 54 Residential Development, Roodepoort, Johannesburg

Transcription

1 December Traffic Impact - and Site Traffic Assessment: Proposed Amarosa Extension 54 Residential Development, Roodepoort, Johannesburg

2 Project #2017/20 Amarosa X54, Roodepoort, Jhb ADDRESS: 60A NORTH STREET, RIETONDALE, PRETORIA, 0084 TEL: COMPANY REG NO: 2015/372344/07

3 EC Breet-Wegelin t/a Timshel Consulting (Pty) Ltd ADDRESS: 60A North Street, Rietondale, PRETORIA, 0084 TEL: COMPANY REG NO: 2015/372344/07 Date December 15, 2017 To: JOHANNESBURG ROADS AGENCY 66 Pixley Ka Isaka Seme Street Johannesburg 2001 ATTENTION: Mr. Jose Monteiro Manager: Development Control (Private) Tel: Dear Mr Monteiro, RE: TRAFFIC IMPACT - AND SITE TRAFFIC ASSESSMENT: PROPOSED AMAROSA EXTENSION 54 TOWNSHIP RESIDENTIAL DEVELOPMENT, ROODEPOORT, JOHANNESBURG It is herewith certified that this traffic impact study and site traffic assessment report has been prepared according to requirements of the South African Traffic Impact and Site Traffic Assessment Manual. Kind regards, Elsjè Breet-Wegelin Pr Eng Owner-Manager TEL: EowynEcc7@gmail.com ECSA Reg. No:

4 Table of Contents 1 INTRODUCTION Background Purpose and Content Extent of the Development Phasing of the Development DATA COLLECTION Traffic Surveys and Site Visit Latent Rights SURROUNDING ROAD NETWORK AND STUDY AREA Road Network and Master Planning Surrounding Road Network Determination of the Study Area ACCESS Site Access Access Management EXISTING TRAFFIC FLOWS DEVELOPMENT TRIP GENERATION AND TRAFFIC VOLUMES SCENARIOS Adjustment Factors Development Trips Trip Distribution and Assignment TRAFFIC IMPACT AND CAPACITY ANALYSIS Scenarios AMAROSA X54 TIA & STA_TIMSHEL CONSULTING_DEC 2017.DOCX 1

5 7.2 Capacity Analysis Capacity Analysis Conclusion NON-MOTORISED - AND PUBLIC TRANSPORT Existing Public Transport Services and Facilities Public Transport Conclusion SITE TRAFFIC ASSESSMENT: REMAINING ASPECTS Parking provision Queuing Analysis Truck Accommodation Geometric Design and Sight Distance Traffic management CONCLUSIONS AND RECOMMENDATIONS REFERENCES AMAROSA X54 TIA & STA_TIMSHEL CONSULTING_DEC 2017.DOCX 2

6 List of Figures Figure 1: Locality map of development... 6 Figure 2: Current Site Layout and Buildings... 7 Figure 3: Extract of the SDF for Region C... 9 Figure 4: Summarised Methodology... 9 Figure 5: Latent Rights and Proposed Townships Figure 6: Gauteng Strategic Major Road Network Figure 7: PWV 5 Road Reserve Figure 8: CoJ Road Network Classification Figure 9: CoJ Planned Road Network Projects Figure 10: Access Configuration of the Development Figure 11: Access and Intersection Spacing Figure 12: Peak Hours Traffic Volumes Figure 13: Development Trip Distribution Figure 14: Development Trip Assignment Figure 15: 2017 Background Traffic with Development and Latent Rights Trips Figure 16: 2022 Background Traffic with Development and Latent Rights Trips Figure 17: Intersection Layout of Doreen Rd/ Totius Rd Figure 18: Minibus Taxi Informal Holding Areas List of Tables Table 1: Development Extent... 7 Table 2: Estimated Units and Trips of Proposed Townships Table 3: Minimum Spacing Recommendations for Intersections on Access Streets Table 4: New Development Trips Table 5: Capacity Analysis Results Summary Intersection of Doreen Rd/ Totius Rd Table 6: Capacity Analysis Results Summary - Access from Totius Rd Table 7: Access Control Queue Lengths on Access Throats AMAROSA X54 TIA & STA_TIMSHEL CONSULTING_DEC 2017.DOCX 3

7 List of Annexures Annexure A: Traffic survey site photos Annexure B: Traffic survey data Annexure C: Site Development Plan AMAROSA X54 TIA & STA_TIMSHEL CONSULTING_DEC 2017.DOCX 4

8 List of Abbreviations Abbreviation A.H. BRT CBD CIMS CoJ COTO Ext. / X FAR GDRT GIS GLA Ha / ha HCM JRA LOS LVO MUD NLTTA NMT PHF RCAM RE / Re RISFSA SDF SDP STA TIA TMH TRB TRH v/c VLVO Meaning Agricultural Holding Bus Rapid Transit Central Business District Capital Investment Management System City of Johannesburg Committee of Transport Officials Extension Floor Area Ratio Gauteng Department of Roads and Transport Geographical Information System Gross Leasable Area Hectare Highway Capacity Manual Johannesburg Road Agency Level of Service Low Vehicle Ownership Mixed Use Development National Land Transport Transition Act Non-motorised Transport Peak Hour Factor South African Road Classification and Access Management Manual Remainder Road Infrastructure Strategic Framework for South Africa Spatial Development Framework Site Development Plan Site Traffic Assessment Traffic Impact Assessment Technical Method for Highways Transportation Research Board Technical Recommendations for Highways Vehicle/ Capacity Ratio Very Low Vehicle Ownership AMAROSA X54 TIA & STA_TIMSHEL CONSULTING_DEC 2017.DOCX 5

9 1 Introduction 1.1 Background Timshel Consulting has been appointed to undertake a Traffic Impact Assessment (TIA) and Site Traffic Assessment (STA) for a proposed residential development on Amarosa Extension 54 (Holding 29) in Roodepoort, Johannesburg. The property is situated on the southern side of Totius Rd, approximately 450m east of the intersection of Totius Rd and Doreen Rd. Amarosa AH falls within Region C of the City of Johannesburg (CoJ). Figure 1 shows the locality of the property. Figure 1: Locality map of development 1.2 Purpose and Content The purpose of this report is to consider the traffic impact of the proposed land use, due to the additional traffic that the development will generate both on-site and on the surrounding road network. This will be done in accordance to the TMH (Technical Methods for Highways) 16 Volume 1 and 2: South African Traffic Impact and Site Impact Assessment Standards and Requirements Manual by the South African Committee of Transport Officials (COTO). The first portion of the report focus on the TIA, whilst Chapter 9 addresses the remaining STA aspects that was not covered already. 1.3 Extent of the Development The current zoning is Agricultural Holding with a house, normal outbuildings and a swimming pool on the property as shown in Figure 2. The proposed zoning is Residential 3 for the development of simplex and duplex residential units. 6

10 Figure 2: Current Site Layout and Buildings Source: CoJ Online GIS Maps Table 1 summarises the proposed development particulars and extent. Table 1: Development Extent Stand Size Stands Particular Proposed ha Stand 1 Stand ha ha 92.72% 7.28% Zoning Residential 3 Private Open Space Coverage 50% FAR 0.50 Height Density Parking ratios 3 Storeys 36 units per hectare with a maximum of 85 units in total 1 Parking bay/ Unit + 1 Parking bay/ 3 Units for visitors (as per Town Planning Scheme) 7

11 1.4 Phasing of the Development It is anticipated that the proposed development will be completed in a single phase within a maximum period of 5 years. 2 Data Collection 2.1 Traffic Surveys and Site Visit A classified traffic survey was conducted on Thursday 23 November 2017 for the AM - (from 6:00 to 9:00) and PM Peak period (from 15:00 to 18:00) at the intersection of Totius Rd and Doreen Rd. The detail of the traffic survey will be discussed later in this report. A set of photos is included in Annexure A depicting the intersection. 2.2 Latent Rights There are two developments in the bigger area that were considered in the study as latent rights. Both TIAs were conducted by Mariteng Consulting Engineers during 2017 from which the detail was obtained for the two developments as discussed in the following paragraphs. The road upgrades and assigned trips, that overlapped the intersection to be analysed for Amarosa X54, were taken into account. The locations of these developments are indicated in Figure Erven 1 to 5 Amarosa The development is situated on the eastern side of Van der Kloof Rd between Hendrik Potgieter Rd and Flora Haase Rd. The proposed zoning is Business 1 for a furniture store including additional storage areas for the retail component, a motor sales market, including a workshop and car wash facility, but excluding dwellings. The development will generate 90 and 124 trips in the AM and PM Peak respectively. The associated road upgrades include the closure of Debora Ave at Doreen St (with a new turning circle) as well as a new road link (Ryan St) between Lawrence Rd and Debora Ave on the eastern boundary of the development Amarosa Extension 11 (Erven 304 to 306) The development is situated on the eastern side of Doreen Rd, south of Debora Ave. The proposed zoning is Business 2 for a second-hand car dealership and vehicle fitment centre as well as an office component. The development will generate 24 and 248 trips in the AM and PM Peak respectively. The road upgrades include the conversion of the staggered intersection (which is priority controlled) of Van der Kloof Rd and Flora Haase Rd to a traffic circle as well as the provision of a raised median island along the road section of Van der Kloof Rd between Flora Haase Rd and Hendrik Potgieter Rd Other Proposed Townships There are other proposed townships in the area were observed on the City of Johannesburg s (CoJ) Online Map Viewer, but the status and development detail of these townships could not be obtained. In order to get an indication of the traffic that might be generated by these townships, the Spatial Development Framework (SDF) for Region C was studied of which an extract is provided in Figure 3. All these proposed townships are indicated as residential developments on the SDF with different densities. The latent rights and these proposed townships (with their different densities) are indicated Figure 5. 8

12 Figure 3: Extract of the SDF for Region C Estimated Additional Trips In order to determine the estimated additional trips that these townships can add to the road network in the area. The summarised methodology for this is detailed in Figure 4. Figure 4: Summarised Methodology Following this methodology, the results are summarised in Table 2. The maximum estimated additional residential units are 772 and associated trips are 657 for both the AM and PM peak hours. 9

13 Figure 5: Latent Rights and Proposed Townships 10

14 Table 2: Estimated Units and Trips of Proposed Townships No Property Size Trip Generation Access Street SDF Density Units Hectare AM In Out PM In Out 1 Erf Re/17 2, Re 1/17 Totius Rd 3 Erf 21 3, Erf 1/25 40 to 60 units/ha 5 Erf 23 4, Erf 22 Vieira Rd 7 Erf 19 2, Erf Re/18 1, Erf 70 Doreen Rd 10 Erf 138/183-IQ 4,09 Malcolm Rd 5 to 10 units/ha Erf 86 2, Erf 2/84 William Rd 5 units/ha 1, TOTAL Because of the lack of detail and timeframes associated with these townships, it was not considered for this study, but it does give a good idea of the estimated additional traffic that will be added on the road network in the area. As prescribed in TMH 16 Volume 2, the background traffic growth rate used for the horizon year will be used instead due to the lack of detail of the proposed townships. 3 Surrounding Road Network and Study Area 3.1 Road Network and Master Planning National and Provincial Planning No relevant national routes are found within the study area. According to the planning of the Gauteng Department of Roads and Transport (GDRT), the PWV 5 runs approximately 210m to the east (in line with the southern boundary) of the development as indicated in Figure 7. An interchange with the PWV 5 is planned at Hendrik Potgieter Rd (also known as the K72) as shown on the extract of the 2010 Gauteng Strategic Major Road Network in Figure 6. The development is not directly impacted by the planned PWV 5 road. 11

15 Figure 6: Gauteng Strategic Major Road Network Figure 7: PWV 5 Road Reserve 12

16 3.1.2 Municipal planning The 2009 RISFSA CoJ road network planning for Region C was considered for this study. An extract of this road network plan is shown in Figure 8 which indicates the classification of the roads. Furthermore, two projects (C6 and C7) in the study area were identified as part of the City s Capital Investment Management System (CIMS) which is shown in Figure 9. Project C7 has been implemented with the link and upgrade of Lawrence Rd to Flora Haase Rd, whilst project C6 will be largely addressed with the road upgrades required for the development of Erven 1 to 5 as discussed in Section Figure 8: CoJ Road Network Classification 13

17 Figure 9: CoJ Planned Road Network Projects 3.2 Surrounding Road Network The development is bordered to the north by Totius Rd, to the east by a retirement village (on holding 312), to the west by an agricultural holding with a residence on (holding 28) and to the south by vacant land (Amarosa Extension 40). More detail on these roads are provided below. à à à à à Totius Rd east of Doreen Rd is classified as a Class 5 road, whilst it is a Class 4 road west of Doreen Rd. The road runs east-west and falls under the jurisdiction of the JRA. The road has one lane in each direction. Doreen Rd is a Class 3 road that runs north-south and links CR Swart Rd in the south to Hendrik Potgieter Rd in the north. It has one lane per direction and falls under the jurisdiction of the JRA. Hendrik Potgieter Rd (also known as the M47 and K72) is a Class 2 road that runs in a northwest to south-east direction. The road has one mostly lane per direction which increase to two lanes per direction in the vicinity of intersections. It falls under the jurisdiction of the GDRT. Van der Kloof Rd is a Class 5 north-south road that traverses Hendrik Potgieter Rd. The road has one lane per direction and falls under the jurisdiction of the JRA. Pinard Rd and Flora Haase Rd are both Class 5 roads that intersects with Totius Rd. Both roads have one lane per direction and runs in an east-west direction. These roads fall under the jurisdiction of the JRA. 3.3 Determination of the Study Area In determining the site area TMH 16 volume 1 recommends the following: à à Class 4 and 5 roads in the vicinity of the development up to the first Class 1 to 3 roads that can be reached by the Class 4 and 5 road network from the development, up to and including the first connection(s) on the Class 1 to 3 roads. The elements shall be restricted to those within a maximum distance of 1.5km from the accesses to the site, measured along the shortest routes to the accesses, provided that there is at least one intersection within this distance. 14

18 TMH 16 also states that judgement should be used in selecting the intersections considered and therefore specific elements like extent of the development were also considered. The study area for the development is shown on Figure 1 and takes the above principles into account. The wider area was considered to understand the traffic flow and to include latent developments and road upgrades, but given the trips generated by the development, only the access and the intersection of Doreen Rd and Totius Rd were analysed in detail for this study. 4 Access 4.1 Site Access The site will have one access from Totius Rd with two lanes entering and one lane exiting the site. Furthermore, there will be a gate house for security personnel and access control. The access configuration of the development is shown in Figure 10. Figure 10: Access Configuration of the Development 4.2 Access Management The spacing between intersections and group housing developments along Totius Rd is indicated in Figure 11. The accesses to properties that are still agricultural holdings and vacant properties were not indicated as the traffic from them is negligible. 15

19 The South African Road Classification and Access Management Manual (RCAM, TRH 26) recommends minimum spacing between intersections on access streets as indicated in Table 3. Table 3: Minimum Spacing Recommendations for Intersections on Access Streets The proposed access position to Amarosa X54 meets the spacing requirement for a Class 5b road. Once the proposed townships on the northern side of Totius Rd develops, ideally the access positions must align with the development accesses on the southern side of Totius Rd. Figure 11: Access and Intersection Spacing 5 Existing Traffic Flows A classified traffic survey was conducted on Thursday 23 November 2017 for the AM - (from 6:00 to 9:00) and PM Peak period (from 15:00 to 18:00) at the intersection of Totius Rd and Doreen Rd (as indicated in Figure 1. A set of photos is included in Annexure A depicting the intersection. The peak hours determined from the traffic surveys are: à AM Peak: 6:45 to 7:45; and à PM Peak: 16:45 to 17:45. The detail traffic survey data is attached in Annexure B. The 2017 Peak Hour Background Traffic Volumes are shown in Figure

20 Figure 12: Peak Hours Traffic Volumes 6 Development Trip Generation and Traffic Volumes Scenarios 6.1 Adjustment Factors Various trip adjustment factors have been introduced into the COTO document to allow for trip reductions. These adjustment factors are discussed briefly below. This study did not take into account any adjustment factors in order to follow a more conservative approach, given the characteristics of the development and land use in the surrounding area Mixed use developments (MUD) According to the COTO manual mixed use developments are defined as developments in an area that consist of two or more single-use developments between which trips can be made by means of non-motorised modes of transport (such as walking). This has the net effect of reducing the vehicle trip generation in the area. 17

21 6.1.2 Low vehicle ownership (LVO) and Very low vehicle ownership (VLVO) According to COTO the vehicle ownership in areas with high levels of vehicle ownership varies between one or two per household. In areas with a low level of vehicle ownership, the majority of households (more than 50%) does not own a vehicle and relies on public transport for transportation. In areas with very low level of vehicle ownership, nearly all households (more than 90%) do not own a vehicle and rely on public transportation Transit node or corridors According to COTO the transit reduction factors are applicable to developments that are located within a reasonable walking distance from a major transit node or stops on a major transit corridor. 6.2 Development Trips Existing trips The trips generated by the current land use as an agricultural holding (used only as a residence) is insignificant and therefore was not considered for the study New Trip generation The total trips generated by the proposed new development is shown in Table 4. The same number of trips are generated in the AM and PM peak, but the inbound and outbound trips differ for the two peak hours. Table 4: New Development Trips Land use COTO Code Units AM Peak PM Peak Rate In Out Trips In Out Rate In Out Trips In Out Townhouses (Duplexes & Simplexes) ,85 25% 75% ,85 70% 30% Trip Distribution and Assignment Assumptions with respect to the expected trip distribution were based on the location of the site access in relation to the surrounding road network, the existing traffic volumes, travel patterns as well as the land use nature of the proposed development and surrounds. The Gravity Method were used at the surveyed intersection. The land use of the surrounding area is mainly residential with two primary destinations, namely Hendrik Potgieter Rd and CR Swart Rd (via Doreen Rd) which are distribution roads to major employment nodes. For this reason, the development trips were distributed 50% towards Doreen Rd and 50% towards Flora Haase Rd that links up with Van der Kloof Rd to reach Hendrik Potgieter Rd. Figure 13 shows the trip distribution for the AM - and PM peak hours respectively, whilst Figure 14 shows the trip assignment for the AM - and PM peak hours respectively. The 2017 background traffic plus the development trips and available latent right trips are shown in Figure 15. The horizon planning year is for 2022 and due to the latent rights and proposed townships in the study area, an above average growth rate of 4% per annum were used for the background traffic. This is in accordance to Typical Growth Rates provided in Table 1.1 of TMH 17. The 2022 background traffic plus the development trips and available latent right trips are shown in Figure 16. Note that the road network used in the background of the figures include the road upgrades from the two TIAs of the latent rights that was considered for this assessment (refer to Chapter 2 for more detail) 18

22 Figure 13: Development Trip Distribution 19

23 Figure 14: Development Trip Assignment 20

24 Figure 15: 2017 Background Traffic with Development and Latent Rights Trips 21

25 Figure 16: 2022 Background Traffic with Development and Latent Rights Trips 22

26 7 Traffic Impact and Capacity Analysis The development will be constructed within the next five years, once approved. Due to the latent rights and proposed townships that are still to be developed, a 5 year horizon year (2022) were also analysed. An above average annual growth rate of 4% were used for the background traffic. Only one intersection and the access to the development were analysed for this study. The capacity analysis was conducted with SIDRA 6.0 software. 7.1 Scenarios The following scenarios were analysed for the two intersections: à 2017 AM Peak background à 2017 PM Peak background à 2017 AM Peak background with development and latent rights traffic à 2017 PM Peak background with development and latent rights traffic à 2022 AM Peak Background with Development & Latent Rights Traffic à 2022 PM Peak Background with Development & Latent Rights Traffic The aim of this analysis is to ensure that the intersections and/or accesses of the proposed development operate at an acceptable level of service (LOS). SIDRA 6.0 software were used for the capacity analysis. 7.2 Capacity Analysis The geometric layout for the access that was used in the capacity analysis can be seen in Figure 10. The latest layout for the intersection of Doreen Rd and Totius Rd was used as indicated in Figure 17. Figure 17: Intersection Layout of Doreen Rd/ Totius Rd The analysis results are presented by the intersection summary outputs from SIDRA. Where there is a capacity concern on intersection movements, more detail is provided as per the COTO requirements. Note that the scenarios are compared in one table in order to simplify observing possible changes in the capacity impact on the intersection. A conclusion on the comparison is drawn after each intersection. 23

27 7.2.1 Intersection: Doreen Rd/ Totius Rd Table 5: Capacity Analysis Results Summary Intersection of Doreen Rd/ Totius Rd 2017 AM Peak Background Traffic 2017 PM Peak Background Traffic Level of Service Summary Movement Summary 24

28 2017 AM Peak Background with Development & Latent Rights Traffic 2017 PM Peak Background with Development & Latent Rights Traffic Level of Service Summary 2022 AM Peak Background with Development & Latent Rights Traffic 2022 AM Peak Background with Development & Latent Rights Traffic Level of Service Summary CONCLUSION The development trips have a negligible impact on the intersection which already experience a problem with traffic movements that needs to find gaps in the traffic stream of Doreen Rd. These movements function at an unacceptable LOS. 25

29 7.2.2 Access from Totius Rd Table 6: Capacity Analysis Results Summary - Access from Totius Rd 2017 AM Peak Background with Development Traffic 2017 AM Peak Background with Development Traffic LOS Lane Summary 2022 AM Peak Background with Development & Latent Rights Traffic 2022 AM Peak Background with Development & Latent Rights Traffic LOS Lane Summary CONCLUSION The proposed access functions at an excellent LOS and the result of each individual movement on the intersection remains the same with both scenarios. There are no capacity concerns on any of the movements in the base year (2017) and the horizon year (2022) scenarios for both peak hours. The proposed access layout is sufficient for the development and no upgrades are required. 26

30 7.3 Capacity Analysis Conclusion The access to the development functions at a good LOS in the base and future year scenario. There is no need for road upgrades at the access and the proposed layout is sufficient. The intersection of Doreen Rd/ Totius Rd proofs a challenge already in the 2017 background traffic analysis. The problem is created by the large volume of through traffic on Doreen Rd that has free flow with the current layout. This causes significant delays on the side movements (Totius Rd) that is currently stop-controlled which struggles to obtain sufficient and safe gaps in the traffic stream on Doreen Rd to either cross the intersection or enter Doreen Rd with a left and/ or right turning movement. The problem is further exasperated by the steep gradient of Doreen Rd towards CR Swart Rd which causes vehicles to easily speed downhill towards the intersection with Totius Rd, making it even more difficult for side movements to find safe gaps. The only way in which this can improve, is by creating gaps by means of traffic control measures in the traffic flow of Doreen Rd. The implementation of a traffic circle was analysed and this will improve the situation, but due to continuity on the road, a traffic signal is probably the best option as found towards Hendrik Potgieter Rd at the intersections of Lawrence Rd, Malcolm Rd and Hendrik Potgieter Rd itself. The developer of Amarosa Extension 54 is not responsible for this improvement as the trips added to the intersection is negligible and since the problem is existing, the JRA should be accountable for this improvement. 8 Non-motorised - and Public Transport In terms of the National Land Transport Transition Act (NLTTA) 22 of 2000, section 29, it is a requirement that an assessment of the public transport be included in a TIA. 8.1 Existing Public Transport Services and Facilities The area has a general lack of public transport services which is discussed in more detail in the following paragraphs Non-motorised Transport The area in the direct vicinity of the development has sufficient road verge for non-motorised transport (NMT), but only sporadic formal walkways are provided. In order to improve the NMT network, it is proposed that a formal walkway be provided along the development boundary on the southern side of Totius Rd Minibus Taxis Minibus taxis are the most common form of public transport in this area. From the classified traffic surveys conducted, it was observed that approximately 3% of the total traffic along Doreen Rd were taxis. Taxi bays are provided on the northern side of Hendrik Potgieter Rd at both the intersections with Doreen Rd and Van der Kloof Rd. The taxis have created an informal holding area in both these areas as seen in Figure 18. A taxi can be reached in Doreen Rd which is an acceptable walking distance (approximately 500m) from the development access. 27

31 Figure 18: Minibus Taxi Informal Holding Areas Metrobus and Rea Vaya The Strategic Public Transport Network of the CoJ has not been planned for the area. There are also no formal bus services in the study area. No buses were also observed during the traffic survey Railway There are also no railway lines in the study area. 8.2 Public Transport Conclusion The area surrounding the development doesn t have a well-integrated public transport network and currently the only option is to make use of a minibus-taxi which can be boarded reached in Doreen Rd. 9 Site Traffic Assessment: Remaining Aspects The site development plan (SDP) for the proposed development is attached in Annexure C. This chapter will focus on the relevant site traffic assessment (STA) aspects that was not addressed in the report thus far. 9.1 Parking provision The scheme requirement for parking is 1 parking bay/unit and 1 parking bay/3 units for visitors. The SDP indicates that there are 49 bigger units, with a parking space each, and 31 smaller units in the development. A total of 107 parking bays are required on the site, whilst a total of 137 parking bays are provided of which 88 are open parking bays. There is thus a surplus of 30 parking bays on the site Parking area design Although not all the measurements are indicated on the SDP attached in Annexure C, the design was scrutinized in detail and complies with the minimum geometric design requirements. 28

32 9.2 Queuing Analysis The worst-case scenario is the PM peak during which 51 vehicles must enter the access (Refer to Figure 14). A queueing analysis is required to assess the potential spill back of traffic into Totius Rd. The total queuing space available is 20m as indicated in Figure 10. Chapter 10 of TMH 16 Vol 2 gives detail on queuing analysis. The traffic ratio is determined by the following formula: The PHF was determined from the traffic surveys conducted at this access. Furthermore, the vehicle storage requirement is concluded from Table 7. An assumption was made that the Magnetic Swipe Card system will be used for access control for which the service flow rate is 480 vehicles per hour. The traffic ratio then equals (where the PHF was calculated as 0.85). Table 7 only starts at 23, thus one channel with storage for one vehicle is sufficient for the access. 3 Vehicles can be accommodated safely per lane (a total of 6 vehicles for the two entrance lanes) at one time, which means there is more than enough storage space available. Table 7: Access Control Queue Lengths on Access Throats Source: Table 31: Chapter 10 of TMH 16 Vol Truck Accommodation Refuse Collection The refuse collection area is situated at the access (refer to Figure 10) from where the municipality will collect it as per their usual fixed schedule Emergency Vehicles Emergency vehicles can be accommodated comfortably through the exit lane of the access which is 4.5m wide. 9.4 Geometric Design and Sight Distance There are no fixed obstructions that will hamper the sight distance from the development access. The design of the access and internal roads of the site is geometrically sound. 9.5 Traffic management No additional traffic management will be required other than the priority control at the access. 29

33 10 Conclusions and Recommendations Based on the TIA and STA report for the proposed residential development known as Amarosa Extension 54, the key conclusions are summarised as follows: à The proposed development is to provide 80 residential; à One access will be provided from Totius Rd with two entry lanes and one exit lane; à The access positions are optimal and does not present any problems or unnecessary conflict with the background traffic; à The proposed development will generate 72 (18:54 in:out) and 72 (51:22 in:out) additional trips in the AM and PM peak respectively (refer to Chapter 6); à The development impact on the capacity of the two priority controlled intersections in the study area is negligible, but a change of intersection control is currently required at the intersection of Doreen Rd/ Totius Rd which is the responsibility of the JRA (refer to Chapter 7); à The geometric design of the internal roads, parking areas and access are sufficient and will be more detailed on the final SDP; à A surplus of 30 parking bays are provided for the development; à A queueing analysis was conducted on the access and it was found that the proposed access layout with two entrance lanes and a storage space of 20m is sufficient (Refer to Chapter 9); and à There is not sufficient provision for public transport within the study area, but a minibus taxi can be reached in Doreen Rd which is 500m from the development access (refer to Chapter 8). It is therefore recommended that the proposed development on Holding 29, and known as Amarosa Extension 54, be supported from a traffic engineering point of view and that the SDP be detailed and approved for the development (refer to Annexure C). 30

34 11 References 1. TMH 16 Volume 1 and 2, South African Traffic Impact and Site Traffic Assessment Standards and Requirements Manual, Version 1.0, Committee of Transport Officials (COTO), August TMH 17 Volume 1, South African Trip Data Manual, Version 1.0, COTO, September TRH 26 South African Road Classification and Access Management Manual, Version 1.0, COTO, August CoJ Corporate GIS Online Maps, < including Joburg 2015 Aerial Photos 5. Google Maps, Google Earth and Street View 6. Motivating Memorandum, Application in terms of Section 26 of the City of Johannesburg Municipal Planning By-Law 2016, read with Section 2(2) The Spatial Planning Land Use Management Act, 2013 (Act 16 of 2013) for the Establishment of a Township: Amorosa Extension 54, Hunter Theron Incorporated Town Planners, October 2017 (Reference: B1711-Rep) 7. Traffic Impact Study: Rezoning Application for Erven 1, 2, 3, 4, & 5 (Revision 1), Amorosa, Mariteng Consulting Engineers, May Traffic Impact Assessment: Proposed Township Amorosa Extension 11 (Revision 1), Mariteng Consulting Engineers, August CoJ Regional Spatial Development Framework: Administrative Region C, Region C: Central Areas Development Plan, Plan No. 18a, January Gauteng Strategic Major Road Network, GDRT, TTT Africa & Khuthele & Vela VKE, May K Route Road Reserves, PWV5.11.kmz, GDRT, Obtained in CoJ Road Network Project, Region C: RISFSA Road Hierarchy Map, Aurecon, June CoJ Road Network Project, Region C: Prioritised CIMS Projects 2015, Figure 13: Project , Aurecon, June Site Development Plan, Proposed Township Amarosa Ext.54 Situated on Holding 29 Amorosa A.H, Drawing No. B1711/1, Hunter Theron Incorporated Town Planners, Aug Traffic Surveys: Intersection of Doreen Rd and Totius Rd, Trafsol, 23 Nov

35 Annexure A: Traffic survey site photos

36 1B 1C 1D 1A

37 Annexure B: Traffic survey data

38 LOCATION 1 6 HOUR COUNT AM PEAK AMAROSA (ROODEPOORT) TRAFFIC SURVEYS TIMSHEL DOREEN AND TOTIUS TOTAL VEHICLES 6:45 7:45 1:00 16:45 17:45 DOREEN , , OUT IN PM PEAK 23/11/2017 THURSDAY IN OUT TOTIUS TOTIUS OUT IN IN OUT DOREEN v2.1 Time South East North West Hourly AM PEAK PM PEAK TOTAL : : : : :00 7: :15 7: :30 7: :45 7: :00 8: :15 8: :30 8: :45 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 14:15 14:30 14: :00 8:15 8:30 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 15: :15 15: :30 15: :45 15: :00 16: :15 16: :30 16: :45 16: :00 17: :15 17: :30 17: :45 17: :00 18: : : :45 19:00 19:15 19:30 19:45 20:00 20:15 20:30 20: :15 17:30 17:45 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00

39 LOCATION 1 6 HOUR COUNT AM PEAK AMAROSA (ROODEPOORT) TRAFFIC SURVEYS TIMSHEL DOREEN AND TOTIUS 23/11/2017 CARS THURSDAY 6:45 7:45 1:00 PM PEAK 16:45 17:45 DOREEN , , OUT IN IN OUT TOTIUS TOTIUS OUT IN IN OUT DOREEN Time South East North West Hourly AM PEAK PM PEAK TOTAL 6:00 6:15 6:30 6:45 7:00 7:15 7:30 7:45 8:00 8:15 8:30 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 14:15 14:30 14:45 15:00 15:15 15:30 15:45 16:00 16:15 16:30 16:45 17:00 17:15 17:30 17:45 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00 20:15 20:30 20: : : : : : : : : :00 8:15 8:30 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14: : : : : : : : : : : : : :15 17:30 17:45 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00

40 AMAROSA (ROODEPOORT) TRAFFIC SURVEYS TIMSHEL LOCATION 1 DOREEN AND TOTIUS 23/11/ HOUR COUNT MINIBUS TAXIS THURSDAY AM PEAK PM PEAK DOREEN :45 7:45 1:00 16:45 17: OUT IN IN OUT 3 TOTIUS OUT IN OUT IN TOTIUS DOREEN Time South East North West Hourly AM PEAK PM PEAK TOTAL : : : : :00 7: :15 7: :30 7: :45 7: :00 8: :15 8: :30 8: :45 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 14:15 14:30 14: :00 8:15 8:30 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 15: :15 15: :30 15: :45 15: :00 16: :15 16: :30 16: :45 16: :00 17: :15 17: :30 17: :45 17: :00 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00 20:15 20:30 20: :15 17:30 17:45 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00

41 AMAROSA (ROODEPOORT) TRAFFIC SURVEYS TIMSHEL LOCATION 1 DOREEN AND TOTIUS 23/11/ HOUR COUNT BUSES THURSDAY AM PEAK PM PEAK DOREEN 1 1 6:45 7:45 1:00 16:45 17:45 2 OUT IN IN OUT TOTIUS TOTIUS OUT IN IN OUT DOREEN Time AM PEAK 1 South East North West Hourly 1 PM PEAK TOTAL : :15 6: :45 7: :00 6:15 7:15 7: :30 6:45 7: :00 8: :15 8:15 8:30 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 14:15 14:30 14:45 15:00 15: :30 7:45 8:00 8:15 8:30 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 14:15 14:30 15:30 15: :45 15:00 16:00 16: :15 15:30 16: :45 16: :00 17: : : :45 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00 20:15 20:30 20:45 16:15 16:30 16:45 17:00 17:15 17:30 17:45 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00

42 AMAROSA (ROODEPOORT) TRAFFIC SURVEYS TIMSHEL LOCATION 1 DOREEN AND TOTIUS 23/11/ HOUR COUNT BUSES THURSDAY AM PEAK PM PEAK DOREEN :45 7:45 1:00 16:45 17: OUT IN IN OUT 3 1 TOTIUS TOTIUS 2 OUT 1 IN OUT IN DOREEN Time South East North West Hourly AM PEAK PM PEAK TOTAL : : : : :00 7: :15 7: :30 7: :45 7: :00 8: :15 8: :30 8: :45 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 14:15 14:30 14: :00 8:15 8:30 8:45 9:00 9:15 9:30 9:45 10:00 10:15 10:30 10:45 11:00 11:15 11:30 11:45 12:00 12:15 12:30 12:45 13:00 13:15 13:30 13:45 14:00 15: :15 15: :30 15: :45 15: :00 16: :15 16: :30 16: :45 16: :00 17: :15 17: :30 17: :45 17: :00 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00 20:15 20:30 20: :15 17:30 17:45 18:00 18:15 18:30 18:45 19:00 19:15 19:30 19:45 20:00

43 Annexure C: Site Development Plan (SDP)

44 GEOTECH CONDUCTED BY GEO SIMPLICITY ENGINEERING (Pty) Ltd REPORT No. : G252-DRW02-REV.00 DATE : JULY 2017 Demarcation of zones is approximate and should be confirmed during construction. 1. Refer to text of report for detailed foundation recommendations. 2. GGL = Ground level at geotechnical investigation fieldwork stage. 3. Site class designation: S2 S2/S S2/S;R S2/R Erf 309 "S2" designation applies from GGL to in excess of 2,8m below GGL "S2" designation applies from GGL to 2,3m and "S" applies in excess of 2,3m below GGL "S2" designation applies from GGL to 2,3m and "S" applies in excess of 2,3m below GGL "S2" designation applies from GGL to 2,1m and "R" applies in excess of 2,1m below GGL D Y Y m B/L INTERLOCKING PAVING X m BUILDING LINE PH4 HOLDING S2/S/R AMOROSA EXTENSION m BUILDING LINE m B/L INTERLOCKING PAVING PH3 INTERLOCKING PAVING PH5 A ERF 3 P.O.S 0,0648ha S2/R PH1 INTERLOCKING PAVING PH2 60 INTERLOCKING PAVING ref GATE HOUSE PAVING INTERLOCKING PH PH7 84 2m B/L PH8 82 INTERLOCKING PAVING 5m B/L INTERLOCKING PAVING X X X Y LINE OF NO ACCESS LINE OF NO ACCESS ERF 1 RESIDENTIAL 3 2,4031ha ERF 2 P.O.S 0,1238ha S2/S TOTIUS ROAD 5m BUILDING LINE S2 2m BUILDING LINE Erf 312 AMOROSA EXTENSION 45 B P R O J E C T L O C A L I T Y P L A N L A N D U S E T A B L E CO - ORDINATE SYSTEM: WG 27 C L I E N T DESIGNED DRAWN PROPOSED TOWNSHIP AMAROSA EXT.54 SITUATED ON HOLDING 29 AMOROSA A.H GEOTECHNICAL PLAN LAND USE RESIDENTIAL 3 PRIVATE OPEN SPACE HT ET D R A W I N G N o. APPROVED DATE NO. OF STAND AREA % TOTAL 3 2,5917ha 100% 1 2 VTC AFRICA B1711 / 1 THE SITE 2,4031 0,1886 AUG SCALE 92,72 7,28 1:1000 (A3) COPYRIGHT RESERVED # BASE PLAN & CONTOURS PROVIDED BY G.J. VAN RIJSEWIJK PROFESSIONAL LAND SURVEYOR # THE ENTIRE ERF 1 IS SUBJECT TO A SERVITUDE OF RIGHT OF WAY IN FAVOUR OF ERF 2 AND ERF 3 ALONG A ROUTE TO BE DETERMINED AS PER THE APPROVED SITE DEVELOPMENT PLAN C Y C o n r a d S t r e e t F l o r i d a N o r t h E - m a i l : h t t r i a f r i c a. c o m T e l n o : ( ) Fax : ( )

45 THANK YOU