City of Oxnard - Bicycle and Pedestrian Master Plan Appendices

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City of Oxnard | Bicycle and Pedestrian Master Plan A.4.9. Bicycle Routes/Bicycle Boulevards at Local/Major Unsignalized Intersections – Crossing Islands Design Summary Design Example Crossing Island Width: 8’ Striping and intersection treatments vary. See following page for additional discussion. Discussion Bicycle crossing islands enable crossing for bicyclists where traffic signals or other designs may not be feasible. Guidance • Caltrans Highway Design Manual (Chapter 1000) • California MUTCD • AASHTO Guide for the Development of Bicycle Facilities Recommended Design (not to scale) Alta Planning + Design | A-35
Appendix A | Design Guidelines Additional Discussion - Bicycle Route/Bicycle Boulevards at Local/Major Unsignalized Intersections – Crossing Islands Special Considerations for Bicyclists at Local/Major Unsignalized Intersections At intersections of Bicycle Boulevards/bicycle routes and major unsignalized intersections, a bicycle crossing island should be provided to allow bicyclists to cross one direction of traffic at a time when gaps in traffic allow. The bicycle crossing island should be at least 8 feet wide (measured perpendicular to the centerline of the major road) to be used as a bicycle refuge. Narrower medians can accommodate bikes if the holding area is at an acute angle to the major roadway, which allows stopped bicyclists to face oncoming motorists. Crossing islands should be in the middle of the intersection, thus prohibiting left and through vehicle movements or at the sides in conjunction with a high-visibility crosswalk (left turn prohibition is recommended). Advantages of bicycle crossing islands Provides safe refuge in the median of the major street so that bicyclists only have to cross one direction of traffic at a time – works well with signal controlled traffic platoons coming from opposite directions. Provides traffic calming and safety benefits by preventing left turns and/or through traffic from using the intersection. Disadvantages / potential hazards • Potential impacts to major roadway, including lane narrowing, loss of some on-street parking and restricted turning movements. • Crossing island may collect debris and may be difficult to maintain. A-36 | Alta Planning + Design
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Appendix D | Bicycle Transportation
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City of Oxnard - Bicycle and Pedestrian Master Plan Appendices

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