A: Class 2 Pedestrian / Cycle Ways PLAN VIEW Pedestrian and Cycle Ways: Layout and Geometry (Refer to A): Walkways and cycle to be provided adjacent to all Class 2 Roads (these facilities should always be separated from the roadway itself by means of a buffer strip minimum 1.0m / desirable 3m). Walkway and cycle way also separated because of speed differential of modes (planted median 0.8m). All existing lateral obstructions should be removed from the walkway / cycle way area. Design Dimensions Walkway (Refer to B) Cycle way (Refer to B) PERSPECTIVE VIEW Gradient 5% Gradient 5% Minimum Width 1.2m Minimum Width 1.5m Desirable width 1.8m Desirable width 1.8m Lateral clearance 0.1m Height clearance 2.1m Buffer strip 1m Lateral clearance 0.5m Height clearance 2.1m Buffer strip 1m B: Geometry and Design Dimensions B: Geometry and Design Dimensions 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. C: Lighting along walkways and cycle ways 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. Application Areas (Refer to D and E): 110
Adjacent to all Class 2 roads Facilities (walkways and cycle ways) to be aligned to crossing points at intersections and mid-block crossings. E: Walkways at Activity Centres D: Walkways along Urban Links 111
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 2 roads. 112
PUBLIC TRANSPORT A: Bus Rapid Transit Routes Bus Rapid Transit (BRT) and Supporting Public Transport: Trunk Routes Refer to A: Dedicated median lanes (Separated from other traffic). Geometry of dedicated lanes as well as route alignment should be sourced from COJ BRT Scoping Study. Trunk Stops Refer to B: Dedicated median stops / stations (Separated from other traffic). Median stations to be connected to pedestrian and cycle ways by means of mid-block or intersection signalized pedestrian crossings. Geometry of BRT stops and stations should be sourced from COJ BRT Scoping Study. BRT Feeder Routes and Other Supporting Public Transport 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 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. B: Bus Rapid Transit Stops Enforcement Dedicated public transport lanes must be enforced by CCTV cameras and electronic ticketing for private vehicle drivers entering restricted public transport roadspace. Application Areas: BRT Trunk Route along Rivonia Road according to City of Johannesburg BRT Scoping Study (Transportation Planning Department). C: Feeder Stops 113
Class 3 Road CLASS 3 ROAD SELECTED ROADWAY ELEMENT DESIGN CODES FOR MARLBORO PRECINCT Development Cell Circulation Description: Minor arterial road / collector road serving as internal vehicular circulation road within the precinct. These roads have a greater balance between mobility and access. The roads serve the internal circulation of the precinct as well as the relatively few trips wishing to travel through the precinct, as opposed to traveling around the precinct on the Class 2 Arterial Routes. Street Classification: Road Hierarchy Glenhove Street Baker Street Characteristics: Speed: Vehicle volumes: Geometry: Turning Radii: Level of Access: Parking: Surfacing: 60 km/h 1750 5000 veh/hr Primarily single carriageway roads but dual carriageway class 3 roads are not uncommon > 4.2m < 10m LOA 3 LOA 6 (Balance between mobility and access interrupted flow) On-street acceptable Road surfacing materials may vary from standard asphalt surfaces. Alternative surfacing should be standard at intersection with high pedestrian conflicting movements as well as along public transport routes with dedicated lanes. Sight Distances Kerb Radii (Turning Vehicles) 114
PEDESTRIAN USERS Conceptualisation of Mid-block Crossings Mid Block Pedestrian Crossings Signal Layout (Refer to A): Provide signalized mid-block crossings along Class 3 routes with S11 signal heads and pedestrian demand push-buttons. Audible signals to be implemented for sight impaired road users. RTM 4 pedestrian crossing lines to be implemented (minimum width 2.3m / desirable width 5m) Signal heads to be placed 3m from RTM1 stop line. W306 signs to be provided leading up to mid-block crossings. Road Lighting (Refer to B): A: Mid-block Crossing Signal Layout 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. 115
A: Pedestrian Signal Scramble Phase Intersection Crossings: Pedestrian Signal Applications: Three types of pedestrian signal applications are recommended for precinct intersections: Standard Pedestrian Phase Scramble Pedestrian Phase (Refer to A) Early Start Pedestrian Phase Intersection and Signal Layout (Refer to B): B: Intersection and Signal Layout Provide signalized pedestrian crossings at all Class 3 route intersections with S11 signal heads and pedestrian demand pushbuttons. Audible signals to be implemented for sight impaired road users. RTM 3 pedestrian crossing lines to be implemented (minimum width 1.5m / desirable width 3m) Interlocking pavers or coloured asphalt is recommended at Class 2 junctions serving as gateways to the precinct (indicates higher pedestrian volumes and entrance to the precincts). Staged crossings should be considered. Minimum median width for staged crossings 2m. Road Lighting (Refer to C): Street lighting to be provided as per NDoT Pedestrian Guideline Standard. C: Intersection Lighting Staged Intersection Crossing Dimensions Kerb Transitions (Refer to D): D: Kerb Transitions Kerb ramps must be implemented at all crossing points to accommodate for wheelchair users and sight impaired pedestrians. 116
Application Areas: Road intersection between Class 3 roads and any other road class (Generally Class 3 or 4) NB: Provide pedestrian crossings on left-slip lanes where high vehicle speeds conflict with pedestrian crossings. 117
A: Class 3 Pedestrian / Cycle Ways PLAN VIEW Pedestrian and Cycle Ways: Layout and Geometry (Refer to A): Walkways and cycle to be provided adjacent to all Class 3 Roads (these facilities should always be separated from the roadway itself by means of a buffer strip minimum 1.0m / desirable 3m). 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 (Refer to B) PERSPECTIVE VIEW Gradient 5% Gradient 5% Minimum Width 1.2m Minimum Width 1.5m Desirable width 1.8m Desirable width 1.8m 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 B: Geometry and Design Dimensions 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. C: Lighting along walkways and cycle ways 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. Application Areas (Refer to D and E): 118
Adjacent to all Class 3 roads Facilities (walkways and cycle ways) to be aligned to crossing points at intersections and mid-block crossings. E: Walkways at Activity Centres D: Walkways along Urban Links 119