Digital Sidewalk Inspection. MEA Workshop Case Study

Transcription

1 Digital Sidewalk Inspection MEA Workshop Case Study

2 Location City of Hamilton

3 City of Hamilton Facts City Incorporation 1846 Amalgamation 2001 Land Area 1117 sq km Population 520,000 (2011 census) Road Network 6,421 lane km Sidewalk Inventory 2,385 km Equivalent to distance from Hamilton to Miami, Florida

4 Background Information Ontario Reg 239/02 under the Municipal Act Minimum Maintenance Standards for Municipal Highways Inspections to be carried out annually Surface discontinuity (vertical) in excess of 2cm to be treated Treatment involves taking reasonable measures to protect users of the sidewalk from the discontinuity, including making permanent or temporary repairs, alerting users attention to the discontinuity or preventing access to the area of discontinuity.

5 Background (cont.) Prior to 2016 the sidewalk inspection was contracted to a third party Annual cost for inspection - $60,000 +/- Information collected was by hard copy, eventually translated to a spreadsheet and provided to the City monthly. This information was slow in getting to the front line work crews City s Risk Management concerned about the adequacy of inspection information

6 Court Case year-old wins $192K settlement after tripping on cracked Hamilton sidewalk A Hamilton court has ruled in favour of an 89-year-old woman who slipped and fell on a 23.8 millimetre bump in the sidewalk, a gap that cost city taxpayers $192,000 in damages. Citing a City of Hamilton worker as a hostile witness, missing inspections for a stretch of sidewalk on Upper Sherman and a city policy to repair raised edges in sidewalks over 19 millimetres, Judge said the municipality "failed" in its responsibilities, leading him to find the city "legally accountable."

7 Sidewalk Trip & Fall Claims Year Number of Claims Total paid in claims $1,926, $1,690, $ 748, $1,334, $2,077,000

8 Sidewalks in other locations: Alexandria, Virginia 2015 Chicago, 2016

9 Sidewalk problems! New Orleans, 2016

10 Sidewalk problems! New Orleans, 2016

11 Development of new inspection system: Consultant/ contractor vs in-house Other Municipality experience Integration with front line work crews Information to be collected o o MMS deficiencies Other deficiencies, i.e. cracks, spalling, ramp deficiencies, blockages, etc. Similar data collection at Hamilton (Street light program)

12 Preferred scheme: Use of Collector App by Esri for data collection Use of IPads by inspectors Use of IPads by front line work crews Retain four co-op students as sidewalk inspectors Data to be collected in real time and available to Project Manager, front line repair crews and Risk Management Formal training and certification to be provided to sidewalk inspectors

13 Collector App Data model preparation The following items were included in drop down menus for the inspectors to fill in while walking the sidewalk network: start and end point of inspection- block to block Width Type Concrete, Asphalt, Interlocking Brick Year Built (if available) Deficiency Type i.e. MMS, Cracked, Reverse crossfall, Drop off, Heaved, Spalled Cause of deficiency Construction, Road cut, Tree, Unknown Suggested repair method Bay replacement, Grinding, Levelling

14 Equipment

15 System set up cost: Training manual & certification test $30k Collector App (Esri) Free Esri data model preparation $8k IPads (12) + external batteries +backpacks $10k Co-op students four months) $80k Rental vehicle $4k ArcGIS online subscription (2016) $5k Paint $1k Total $138k Ongoing costs will not include the cost for the equipment, preparation of a training manual nor the data model preparation.

16 What the Inspector sees:

17 What the Project Manager sees:

18 What the Repair Worker sees:

19 What Risk Management sees:

20 Year 1 Findings, Issues & Lessons Learned: Use of App well rec d by Senior Mgt and front line staff Risk Mgt very supportive of new inspection system Currently no link to CMMS (Hansen) Training very important Inspectors need proper ID Keep MMS issues to travelled portion of sidewalk Asphalt repairs are temporary Need long term strategy for treatment of MMS deficiency asphalt vs concrete products

21 Future opportunities: Integration of s/w inspection data with repair program Integration with work order system (Hansen) Integration with City s Urban Braille Program Accessibility ramp program Other future opportunities: Use of Collector App for other asset management applications i.e. Guiderails

22 Thank You