Pedestrian crossings may be controlled for example: at traffic lights or noncontrolled with a suggested crossing point provided by a kerb ramp median and so on.
Common forms of crossing are:
- kerb ramp with TGSIs at traffic light crossing; with push button assembly (PBA);
- kerb ramp at traffic light crossing with push button assembly no TGSIs;
- kerb ramp with TGSI;
- kerb ramp;
- footpath graded to carriageway with TGSIs at traffic light crossing and PBA; and
- footpath graded to carriageway.
Push button assemblies (PBAs) are either mounted to the side of the path of travel that is: the side of a pole with a horizontal arrow indicating direction of travel or facing the path of travel and fitted to the front of the pole with a vertical arrow indicating direction of travel. Vic Roads guidelines indicate that a horizontal arrow should be used. Both arrow positions are clear however future upgrades will adopt a consistent approach.
Key Design Features
- Types kerb ramp: Inserted/ Attached / Inline
- Aligned in direction travel
- Top and bottom of kerb ramp at 900 to direction travel
- Sharp transition gradient
- Rise 190mm max grad 1:8 length 1520mm
- Slip resistant
Kerb ramp landings
- No change direction = 1200mm
- T junction = 1500 x 2000mm
- Single change direction = 1500 x 1500mm
- TGSIs required if >3m from top of ramp to building line that is: .4520mm wide (3000mm + 1520mm) for single entry crossing
The geometry of kerb ramps requires achieving a level sharp transition to provide a gradient of 1:8 – 1:8.5 with splayed sides at an angle of 450. The ramp itself needs to be in the direction of travel and must line up with the crossing point on the other side. A compliant kerb ramp of gradient 1:8 will have a length of 1.52m. If the distance from the top of the kerb ramp to the building line is >3m TGSIs are also required (ie TGSIs required if the footpath is >4.52m wide). Many footpaths are more than 4.52m wide and thus where kerb ramps are provided compliant TGSIs are required too. For footpaths less than 4.52m wide a compliant kerb ramp at a single crossing point provides sufficient information and TGSIs are not required.
Crossings
- Single entry single crossing point
- Dual entry single crossing point
- Dual entry separate crossing point
- Time delay not more than 0.4m/s
Push Button Assembly (PBA)
- Height 1000 +-100mm
- Zone of common reach 300-400mm from APT
- Audio/tactile device
- >2m from another audio/tactile device
- Horizontal arrow direction travel
Summary of Recommendations
- It is recommended that a detailed audit is undertaken of pedestrian crossings within the Central Geelong area.
- Push button assemblies (PBAs) are mounted either on the face of the pole with a vertical arrow indicating direction or are side mounted with a horizontal arrow mounted on the approaching face of the pole that is: facing accessible path of travel. Vic Roads guidance refers only to the side mounted PBA and horizontal arrow. Both styles may be acceptable but this should be clarified with Vic Roads.
- Where a confl ict arises with utility cover a graded transition to the carriageway could be provided with appropriate TGSIs.
- A common confl ict in TGSI placement occurs from the width of the crossing and arc of the road. The road line markings the pedestrian crossing need to align with the footpath so that TGSIs can be placed correctly.