“ Share The Road ” signage and pavement markings .
• See AASHTO and Policy on Geometric Design of Highways and Streets ( Green Book ), for additional guidance .
• When widths greater than 14 feet extend continuously along a stretch of roadway , they often encourage the undesirable operation of two motor vehicles in one lane . Consider striping bike lanes and shoulders when pavement widths are greater than 14 feet .
Figure 7.51.5 . Example of shared lane markings
C . Signed , Marked Bike Route
A signed , marked bike route is a bicycle facility that allows both bicyclists and motorists to use the same travel lane along a street .
Bike routes are designated by signs and markings as a preferred route for bicycle use and are typically recommended on lower-volume residential streets and minor collector roads with low traffic volumes and a speed limit of less than 35 miles per hour . They are often used where there is no room for a designated bike lane or on-street parking is necessary .
Figure 7.51.6 . Shared Lane Stencil Dimensionss
The shared lane pavement marking is used to 1 ) show bicyclists where in the the roadway lane they should ride , particularly in locations with on-street parallel parking to ensure safe bicycle travel outside parked vehicle door zones ; 2 ) identify the proper direction of travel for bicyclists ; and 3 ) create awareness for motorists that the travel lane is a shared use lane . ( Figures 7.51.5 through 7.51.7 ).
Design Criteria :
• Provide a smooth roadway surface . Adjust utility covers , install bicycle-safe grates , and fill potholes as needed .
• Refer to MUTCD and AASHTO Standards for bike route and share the road signage .
• Refer to MUTCD and AASHTO Standards for share the road pavement markings .
• A shared lane marking shall include white paint markings indicating that the roadway
Figure 7.51.7 . Shared lane dimensions for on-street parking .
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