We’re back with another update on the 1st Street green bike lane project. LADOT has been testing materials to ensure that the colorization will be durable, color retentive, skid resistant, cost effective, and highly visible. After considerable review, the Department has deemed colorization in conflict zones to be the most prudent treatment for the 1st Street green bike lanes. More on the project below the fold.
Colored Bicycle Lanes in Conflict Areas
The L.A. City Bike Plan’s Technical Design Handbook (TDH) provides guidance on coloring conflict areas. Coloring conflict areas is the most cost effective application of the treatment. By only greening select areas, extra attention will be drawn to these conflict zones. According to the Bike Plan’s TDH, coloring conflict areas will:
- Draw attention to conflict areas
- Result in more consistent yielding behavior by motorists
- Emphasize the expectation of bicycles in the roadway
According to a study by the Portland Bureau of Transportation, significantly more motorists yielded (from 72% to 92 %) to bicyclists and slowed or stopped before entering the conflict area after colored pavement installation. In addition, an overwhelming majority (76%) felt that the locations were safer following colorization. The treatment was also found to help guide bicyclists along the recommended path of travel. While Portland used blue to highlight conflict areas, LADOT will be using FHWA approved green colorization for bike lanes.
Proposal for 1st St.
1.6 miles of bike lanes on 1st Street from Boyle Ave to Lorena St. will be enhanced with green colorization in conflict areas by the end of this month. The green coloring will enhance the bike lane in areas where conflicts between bicycles and motorists are most likely to occur. Conflict zones along the route will include driveways, alleys, and bus zones.
Leading into intersections, the green bike lane coloring will be dashed to denote shared space between bicycles, cars, and buses. The green coloring will be solid at driveways, alleys, and at the start the block (leaving the intersection) to emphasize the expectation that bicyclists will be on the roadway. The bike lanes will be greened primarily with thermoplastic, while some sections with poor pavement quality will be painted (with the middle option green paint) and thermo-ed later pending roadway repairs.
We would like to hear your thoughts on our proposed 1st Street design. Please leave your thoughts/suggestions/concerns in the comments section below.