Vicroads Supplement to AGRD Part 3: Geometric Design
Total Page:16
File Type:pdf, Size:1020Kb
VicRoads Supplement to Austroads Guide to Road Design Part 3: Geometric Design (2016) January 2017 Page 1 of 3 Commercial in Confidence Cover Sheet - 2017.docx Amendment Record Rev. No. Section/s Description of Revision Authorised By Date Released Update Rev. 1.0 First Edition Development of Supplement ED – Network & Asset July 2010 Planning Rev. 1.1 Various Minor changes to text, references Principal Advisor – Sept 2010 and layouts. Road Design, Traffic & Figure 5.1 & figures in table Standards updated Rev. 2.0 Section 2.2.7 Livestock Crossings Principal Advisor – July 2011 Section 5.3.1 Car Stopping Sight Distance Road Design, Traffic & Standards Section 7.1 Compound Curves Section 7.6.1 Minimum Radius Curves Section 8.4.2 Grading Point Section 8.5.3 Maximum Grades Section 8.6.3 Crest Vertical Curves Section 8.6.5 Sag Curves Rev 3.0 Section 3.3 Operating Speeds on Urban Principal Advisor – Sept 2012 Section 3.4 Roads Road Design, Traffic & Standards Section 4.7 Operating Speeds on Rural Roads Section 4.4 Medians Section 4.6 Verge Section 5.2 Roadside Drainage Section 7.6 Sight Distance General Side Friction & Minimum Curve General edits & corrections Rev. 3.1 Section 4.6 Roadside Drainage Principal Advisor – Dec 2012 Section 10.2 Bridge Cross Section Road Design, Traffic & Standards General General edits & corrections Rev.4.0 Various Significant review to reflect Principal Advisor – Jan 2017 changes to AGRD Part 3 Road Design & Traffic This VicRoads Supplement must be read in conjunction with the Austroads Guide to Road Design. Reference to any VicRoads or other documentation refers to the latest version as publicly available on VicRoads website or other external source VicRoads Supplement to Austroads Guide to Road Design, Part 3 – Rev. 4.0 2 January 2017 Table of Contents References .........................................................................................................5 1. Introduction .............................................................................................6 1.3 Design Criteria ................................................................................................... 6 2. Fundamental Considerations ................................................................6 2.2 Design Parameters .............................................................................................. 6 2.2.2 Road Classification ............................................................................................ 6 2.2.7 Design Vehicle ................................................................................................... 6 2.2.10 Access Management ......................................................................................... 7 3. Speed Parameters ..................................................................................7 3.3 Operating Speeds on Urban Roads ................................................................... 7 3.3.1 Melbourne Arterial Road Network ...................................................................... 7 3.3.2 Metropolitan Freeways/Motorways .................................................................... 7 3.4 Operating Speeds on Rural Roads .................................................................... 8 3.4.1 Major Rural Cities .............................................................................................. 8 3.4.2 Rural Highways and Intermediate/High Speed Rural Roads............................. 8 4. Cross Section ..........................................................................................8 4.1 General 8 4.1.1 Functional Classification of Road Network ........................................................ 8 4.2.4 Traffic Lane Widths ............................................................................................ 8 4.2.5 Urban Road Widths ............................................................................................ 8 4.2.6 Rural Road Widths ............................................................................................. 9 V4.2.7 Over Dimensional (OD) Vehicles ....................................................................... 9 4.3 Shoulders ........................................................................................................ 10 4.3.3 Shoulder Sealing .............................................................................................. 10 4.6 Roadside Drainage .......................................................................................... 14 4.6.4 Kerb and channel ............................................................................................. 14 4.7 Medians 17 4.7.1 Median Width ................................................................................................... 17 4.8.13 Advisory Treatments ........................................................................................ 18 4.9 High Occupancy Vehicle (HOV) Lanes ............................................................ 18 4.9.2 Bus Lanes ........................................................................................................ 18 4.9.3 Tram/Light Rail Vehicle (LRV) Lanes – Tram Track Design Standards .......... 18 4.10 On-street Parking ............................................................................................ 18 4.10.3 Angle Parking ................................................................................................... 18 4.10.4 Centre of Road Parking ................................................................................... 18 4.11 Services Roads, Outer Separators and Footpaths ........................................... 18 4.11.1 Service Roads (from RDG 3.2) ........................................................................ 18 4.11.3 Urban Border ................................................................................................... 18 4.12 Bus Stops ........................................................................................................ 18 4.12.1 General ............................................................................................................ 18 4.12.2 Urban (Indented bus stop bays) ...................................................................... 18 4.12.3 Rural................................................................................................................. 19 VicRoads Supplement to Austroads Guide to Road Design, Part 3 – Rev. 4.0 3 January 2017 5. Sight Distance ....................................................................................... 19 5.1 General 19 5.2 Sight Distance Parameters .............................................................................. 19 5.2.2 Driver Reaction Time ....................................................................................... 19 7. Horizontal Alignment ............................................................................ 20 7.5.1 Compound Curves ........................................................................................... 20 7.7 Superelevation ................................................................................................. 21 7.7.5 Length of superelevation Development ........................................................... 21 7.7.10 Positioning of Superelevation Runoff without Transitions ............................... 22 7.7.11 Positioning of Superelevation Runoff with Transitions .................................... 23 8. Vertical Alignment ................................................................................ 23 8.2.3 Flood Levels or Water Table (from RDG 2.5.4.2) ............................................ 23 8.2.5 Underground Services ..................................................................................... 23 8.5 Grades 24 8.5.3 Maximum Grades ............................................................................................. 24 8.6 Vertical Curves ................................................................................................ 24 8.6.1 General ............................................................................................................ 24 9. Auxiliary Lanes ..................................................................................... 26 9.5 Climbing Lanes ................................................................................................ 26 9.5.1 General ............................................................................................................ 26 9.6 Slow Vehicle Turnouts ..................................................................................... 26 9.6.2 Slow Vehicle Turnouts ..................................................................................... 26 9.9 Geometric Requirements ................................................................................. 27 9.9.2 Tapers .............................................................................................................. 27 9.9.3 Starting and Termination Points ...................................................................... 27 10. Bridge Considerations ......................................................................... 28 10.1 General 28 Appendices ...................................................................................................... 29 Appendix A Extended Design Domain (EDD) for Geometric Road Design ............ 29 Appendix E Narrow Median Treatments with Wire Rope Safety Barrier (WRSB) .. 29 Appendix I Reverse Curves ................................................................................