Motorways Route in Thailand 2 2
Development of Highway Community Speed decreased Open Highway At Grade Median Opening Settlements along the highway (Ribbon Development) Non Control Access or Partial Control Access cause : - Speed decreasing - Longer Travel Time - Lower Level of Service - Reduce Safety of Through Traffic - Accidents 3 3
Development of Motorway Grade Seperate Intersection Motorway (Fully Control of Access) Open Highway Collector Distributor Road 4 4
Motorway in Rolling Terrain Motorway in Flat Terrain 5 5
Geometric Design Standards For main motorway DOH 1996 Parameter Desirable Standard Absolute Lowest Standard A. MAIN SECTIONS OF MOTORWAY Lane Width 3.60 m 3.60 m Outer Shoulder Width 3.00 m 3.00 m Inner Shoulder Width 1.00 m 1.00 m Ultimate Median Width 6.30 m 3.60 m Outer Verge Width 0.50 m 0.50 m Inner Verge Width 0.50 m 0.50 m Minimum Vertical Clearance 5.25 m 5.00 m Maximum Gradient 3% 5% Maximum Superelevation 4% 7% R.O.W 70 m 50 m B. DESIGN SPEED RELATED STANDARDS FOR MAIN MOTORWAY Design Speed 120 kph 100 kph Min Stopping Sight Distance 290 m 210 m Min Horizontal Radius with 4% superelevation 1500 m Min Horizontal Radius with 7% superelevation 720 m Vertical Curvature K Value (crest) 165 100 Vertical Curvature K Value (sag) 65 40 6 6
Geometric Design Standards Interchange on motorway DOH 1996 Design Element Unit Desirable Standard Absolute Minimum Standard Loop Ramps Design Speed kph 60 40 Minimum Horizontal Radius m 130 50 MaximumSuperelevation % 6 10 MaximumGradient (up) % 4 6 MaximumGradient (down) % 5 7 Minimum Stopping Sight Distance m 90 50 Semi-directional Ramps Design Speed kph 70 50 Minimum Horizontal Radius m 190 75 MaximumSuperelevation % 6 10 MaximumGradient (up) % 4 5 MaximumGradient (down) % 4 6 Minimum Stopping Sight Distance m 130 70 Directional Ramps Design Speed kph 90 70 Minimum Horizontal Radius m 335 155 MaximumSuperelevation % 6 10 MaximumGradient (up) % 4 5 MaximumGradient (down) % 4 6 7 Minimum Stopping Sight Distance m 170 110 7
General Motorway Section Without service road With service road 8 8
Viaduct Section 9 9
Component of Motorway 10 10
Design of Service Area Rest Area Service Area Distance 30 km. Max. 50 km. Parkinglot Public Toilet Park Beverages Restaurant Information center Shops Pavilion Emergency Services Gas station The parking area allocated for the MSA based upon the projected traffic after fifteen years 50% of Traffic Volume for Car 35% of Traffic Volume for Trucks 10% of Traffic Volume for Buses 11 11
Rest Area Bus Personal Car Truck 12 12
Service Area Bus Personal Car Truck 13 13
TOLL PLAZA 14
Toll Collection System (Closed System) No. of Entry Toll Booths : No. of Entry lanes 3 : 1 No. of Exit Toll Booths : No. of Exit lanes 4 : 1 Rate of allowance from entry Toll Plaza 450-550 Vehicle/Hr./Lane Rate of allowance from exit Toll Plaza Manual System 250-350 Vehicle/Hr./Lane Automatic System(with divider) 800 Vehicle/Hr./Lane Automatic System(without divider) 1800 Vehicle/Hr./Lane 15 15
Design of Weighing System Dynamic Weighing System Located before approaching the static Weighing system. Static Weighing System Overweight trucks will be forced to weigh on the static weighing station for more accuracy. 16 16
Undercrossings, Overcrossings, Service Road for Local Communication (Land Seperated by Motorway) 17 Overcrossings with Service Road and 17
Design of Street Lighting Design of density of Light. Average of Light density 15 Lux for main Line 20 Lux for intersection and interchange 20 Lux for toll plaza and station 25 Lux for tunnel Low Pressure Sodium High Pressure Sodium Example of Lighting Use standard of The Provincial Electricity Authority and other International Standard 18 18
Design of Sign and Marking Use Standard of DOH and Office of Transport and Traffic Policy And Planning 19 19
Traffic Control & Surveillance System Emergency Telephone CCTV 20 20
Traffic Control & Surveillance System Matrix Sign (MS) Variable Message Sign (VMS) 21 21
Noise Barrier 22 22