Boarding islands must be designed to permit accessible boarding. For low-floor vehicles using bridge plates, near-level boarding can usually be achieved with a 9.5- to 12-inch platform. Higher (14-inch) platforms typically require that all doors be configured for level boarding, and may be incompatible with some buses.
An accessible boarding area, typically 8 feet wide by 5 feet long, must be provided to permit boarding maneuvers by a person using a wheelchair (ADA Std. 810.2.2) (see page 67).
Where the bike lane or cycle track requires bicyclists to yield at a crosswalk from the sidewalk onto the island, the BIKES YIELD TO PEDESTRIANS sign (MUTCD R9-6) and yield triangle markings must be installed.
Platform must be aligned to streetcar tracks with appropriate lateral clearance for level boarding; may require 9-foot moving lane or other track or lane realignment in cases with right-lane mixed-traffic operations.
Platform access ramp may have a maximum slope of 1:12 at a crosswalk or other crossing point, at the sidewalk and onto the platform (ADA Std. 405.2).
Use reflective signage or other visible raised element on the leading (back left) corner of the island. KEEP LEFT or KEEP RIGHT (MUTCD R4-8) or object marker (OM-3) signs may be used.
Detectable warning strips must be placed on both sides of every crossing over the bike lane.
An accessible ramp should be placed at the intersection end of the island entering the crosswalk. If there is no crosswalk at the intersection, install one, with a refuge island tip to protect pedestrians (at least 6 feet wide).
For mid-block stops, include raised crosswalks across bike channel to encourage people on bikes to yield to people accessing the island.
Boarding island stops should include shelters, seating, wayfinding, and passenger information when feasible.
Shelters should be located at least 10 feet from crosswalks over the bike lane to allow visibility between people on bicycles and people exiting the island. Leaning rails may be located along this gap.
Install leaning rails along the edge of the island along the bike channel on portions of the island without a shelter or accessible boarding area. If leaning rails or fence are installed along the accessible boarding area, the total island width usually must be increased to 9 feet. Boarding islands can be extended to include bike parking, additional seating, parklets, or other community facilities.
In locations with wide sidewalks and no parking, the bike lane or cycle track may be bent in to the sidewalk to create a boarding island. In this case, raised crossings are an option to encourage yielding to people accessing the island, and to reduce bicycle speeds at the stop. Bike lanes should not generally be bent into the sidewalk to create pull-out bus stops on streets with parking lanes.
A YIELD stencil marking may be marked in the bike channel prior to the crosswalk to reinforce the requirement to yield.