A: Stair Applications Building Frontages: Geometry (Accessed from the Sidewalk) Refer to A: Ramps should be provided for disabled users at 1:12 (8.3%) gradient. Ramp rises should be stepped at 400mm intervals. Stairs to be implemented according to National Building Regulations (SABS 1900) Public stairs 1.5m width, minimum of 3 steps, non-slip materials with -2% gradients for drainage. B: Bicycle Ramps at Public Stairs Bicycle Ramps and Storage (Refer to B): Bicycle ramps to be provided adjacent to all stairs 1:2 (50%) gradient. Locate bicycle storage and parking adjacent to major destinations i.e. BRT stations, GRRL station, employment-, retail- and entertainment centres. Storage geometry: Length: 1.8m Width: 0.6m Height: 2.1m Aisle: 1.5m Application Areas: All building frontages leading out onto Class 3 roads. 120
PUBLIC TRANSPORT A: Feeder and Public Transport Routes Surfacing Bus Rapid Transit (BRT) and Supporting Public Transport: BRT Feeder and Other Public Transport Routes (Refer to A) BRT Feeder Routes, GRRL feeder/distribution system and other public transport modes generally travel on Class 3 routes. Feeder routes form part of the general traffic stream and are not separated as with trunk routes. Signage and special road surfacing should demarcate these feeder routes. BRT Feeder Stops and Other Public Transport Stops (Refer to B and C) Stops to be provided within the road reserve, but also separated from through traffic (i.e. Lay-by) Multi-modal stop sharing is encouraged. Multi-modal signage recommended at stops. Enforcement Dedicated public transport lanes must be enforced by CCTV cameras and electronic ticketing for private vehicle drivers entering restricted public transport roadspace. B: Feeder and Public Transport Stops Application Areas: BRT feeder routes according to City of Johannesburg BRT Scoping Study (Transportation Planning Department). SPTN routes according to the City of Johannesburg Integrated Transport Plan. Gauteng Rapid Rail Link feeder / distribution routes. C: Feeder Stops 121
PRIVATE TRANSPORT A: 90 On-street Parking Dimensions Parking: Geometry and Layout (Refer to A, B and C) Parking standards are to be applied in accordance with the National Department of Transport Parking Standards (2 nd Edition), 1985. Application Areas (Refer to D): On-street parking is acceptable on Class 3 routes, but not preferred. On-street parking should primarily be provided along Class 4 and 5 routes. B: 45 On-street Parking Dimensions C: Parallel Parking Dimensions D: Typical Layout Applications of On-street Parking 122
Class 4 and 5 Roads CLASS 4/5 ROAD SELECTED ROADWAY ELEMENT DESIGN CODES FOR MARLBORO PRECINCT Development Cell Circulation Description: Residential collector / access roads serving properties within the precinct. These roads are mainly utilised as access routes with little mobility. Street Classification: Road Hierarchy Fredman Maude Gwen Bute Norwich Close Protea Place Sandown Valley Alice Characteristics: Speed: 60 km/h Vehicle volumes: 500 1500 veh/hr Geometry: Primarily single carriageway roads but dual carriageway class 3 roads are not uncommon Turning Radii: > 4.2m < 10m Level of Access: LOA 7 LOA 8 Parking: On-street acceptable Surfacing: Road surfacing materials may vary from standard asphalt surfaces. Alternative surfacing should be standard at intersections and at midblock pedestrian crossings. Sight Distances Kerb Radii (Turning Vehicles) 123
PEDESTRIAN USERS A: Priority Mid-block Crossing Priority Mid-Block Pedestrian Crossings Yield Layout (Refer to A): Provide yield mid-block crossings along Class 4/5 routes. RTM 4 pedestrian crossing lines to be implemented (minimum width 2.4m/ desirable 5m width) No overtaking line RM1 fro 9m minimum / 16m preferred. RTM2 road signage with yield sign WM5 RTM2 to be placed 3m minimum 6m from block pedestrian crossing (RTM4). Option to provide raised block pedestrian crossing to serve as further speed reduction tool. Road Lighting (Refer to B): Street lighting to be provided as per NDoT Pedestrian Guideline Standard. Kerb Transitions (Refer to C): Kerb ramps must be implemented at all crossing points to accommodate for wheelchair users and sight impaired pedestrians. C: Kerb-Ramp Details B: Lighting of Mid-Block Crossings Application Areas: High volume pedestrian crossing points that occur mid-block between two land-use attractors or where intersection spacing is longer than 300m apart. 124
A: Roundabout Intersection Pedestrian Crossing Intersection Crossings: Roundabout Intersection Pedestrian Crossing (Refer to A): RTM 4 pedestrian crossings to be implemented (minimum width 1.5m / desirable width 3m) RTM 2 with WM5 yield road signage on both sides of the pedestrian crossing. Therefore vehicle will yield for pedestrians before entering the circle, then vehicles upon entering the circle, again yielding before exiting the desired road. Shared pedestrian and cycle lanes provided adjacent to road with signage R113 W201 Roundabout sign Provide barrier kerbing. Option to provide raised roundabout intersection to further reduce vehicular speed. Staged Intersection Crossing (Refer to B): RTM 3 pedestrian crossing lines to be implemented (minimum width 1.5m / desirable width 3m) Interlocking pavers or coloured asphalt is recommended at Class 4/5 junctions serving as gateways to a residential road. Staged crossings should be considered. Minimum median width for staged crossings 2m. Raised pedestrian crossing can be considered. Road Lighting (Refer to C): Staged Intersection Crossing Dimensions Street lighting to be provided as per NDoT Pedestrian Guideline Standard. C: Intersection Lighting D: Kerb Transitions Kerb Transitions (Refer to D): Kerb ramps must be implemented at all crossing points to accommodate for wheelchair users and sight impaired pedestrians. 125
Application Areas: Road intersections between Class 4 roads and Class 5 roads and Class 5 roads and Class 5 roads. 126
A: Class 4 and 5 Pedestrian / Cycle Ways Pedestrian and Cycle Ways: Layout and Geometry (Refer to A): Walkways to be provided adjacent to all Class 4/5 Roads with cycle ways provided within roadway separated by paint marking. Walkway and cycle way also separated because of speed differential of modes (Barrier Kerb 0.3m). All existing lateral obstructions should be removed from the walkway / cycle way area. Design Dimensions Walkway (Refer to B) Cycle way B: Geometry and Design Dimensions Gradient 5% Gradient 5% Minimum Width 1.5m Minimum Width 2.5m Desirable width 1.8m Desirable width 3m Lateral clearance 0.1m Height clearance 2.1m Lateral clearance 0.5m Height clearance 2.1m Buffer strip 0.6m Buffer strip 0.6m B: Geometry and Design Dimensions C: Lighting along walkways and cycle ways Surfacing: Surfacing should be conducive to movement of able bodied users and users with disabilities. Gratings and covers opening 12mm. Edges Edges should be defined visually and tactile. Handrails to be implemented where vertical drop of 0.8m with slope steeper than 1:2 (50%) occurs within 1.2m from edge. D: Walkways along Urban Links Lighting (Refer to C): Lighting should be provided along all walkways and cycle ways for safety and security as well as night-time operational reasons. 127
Application Areas (Refer to D and E): Adjacent to all Class 4/5 roads Facilities (walkways and cycle ways) to be aligned to crossing points at intersections and mid-block crossings. E: Walkways at Activity Centres 128
A: Stair Applications Building Frontages: Geometry (Accessed from the Sidewalk) Refer to A: Ramps should be provided for disabled users at 1:12 (8.3%) gradient. Ramp rises should be stepped at 400mm intervals. Stairs to be implemented according to National Building Regulations (SABS 1900) Public stairs 1.5m width, minimum of 3 steps, non-slip materials with -2% gradients for drainage. B: Bicycle Ramps at Public Stairs Bicycle Ramps and Storage (Refer to B): Bicycle ramps to be provided adjacent to all stairs 1:2 (50%) gradient. Locate bicycle storage and parking adjacent to major destinations i.e. BRT stations, GRRL station, employment-, retail- and entertainment centres. Storage geometry: Length: 1.8m Width: 0.6m Height: 2.1m Aisle: 1.5m Application Areas: All building frontages leading out onto Class 4/5 roads. 129