5.10.030 Thoroughfare Design.
A. Thoroughfares are intended for use by vehicular and pedestrian traffic and to provide access to lots and open spaces.
B. Thoroughfares shall generally consist of vehicular lanes and public frontages.
C. Thoroughfares shall be designed in context with the urban form and general intention of the transect zones through which they pass.
1. Within the more urban transect zones (T3 through T6) pedestrian comfort shall be a primary consideration of the thoroughfare design. Design conflict between vehicular and pedestrian movement generally shall be decided in favor of the pedestrian.
2. Within the most rural transect zones (T1 and T2) pedestrian comfort shall be a secondary consideration of the thoroughfare design. Design conflict between vehicular and pedestrian movement generally shall be decided in favor of the vehicle.
D. Thoroughfares shall be designed to accommodate the types of vehicles expected to use each thoroughfare on a daily basis. Occasionally, large vehicles are expected on all thoroughfares. All thoroughfares shall allow these vehicles to safely pass without major difficulty. It is expected that large vehicles may encroach on the opposing lane when making turning movements.
E. Additional Design Considerations. Other factors that may need to be considered in the application of thoroughfare assemblies in transect zones include the following:
1. Topography. Thoroughfares that traverse steep slopes may need to incorporate additional design consideration for such elements as drainage facilities, additional width for bicycle lanes on the uphill side of the thoroughfare, etc.
2. Truck Access. Thoroughfares that provide access to high volumes of large trucks may need additional design considerations to mitigate potential negative effects on walkability.
3. Bus Service. Thoroughfares that will serve as public transit or school bus routes may need additional design considerations, including, but not limited to, the location of bus stops.
4. Fire/Emergency Access. Additional design considerations may be needed to accommodate Fire/Emergency Access, including, but not limited to, the location of rolled curbs and bulb-outs to accommodate fire truck outriggers.
F. All lane dimensions shall be measured to the face of the curb. Where no curb and gutter is provided, the lane dimension shall be to the edge of the pavement. For Yield movement types, lane dimensions assume two-way traffic and are for a single lane accommodating two-way traffic.
G. Shared lanes with sharrow markings on the travel lanes or a bicycle boulevard, a road shared by bicycles and vehicles, are allowed and may be required on streets with a design speed of 25 mph or less.