Below is DDOT's press release, but let me highlight some of the conclusions from the study first:
16th Street/U Street New Hampshire
- Motor vehicle intersection LOS remained the same before and after the bicycle facilities were installed.
- Fewer than 20% of cyclists are using the bike box and bike signal as intended to cross the intersection.
- 82% of cyclists are stopping in the crosswalk instead of the bike box as intended. Though the bike box may still be effective at giving separation as only 15% of cars are stopping in it.
- 13% of Cyclists using the bike signal encounter motor vehicles who are running the red, but are able to navigate through.
- There was 1 more bicycle crash (5 vs. 4) at the intersection in the year after the installation than before.
Pennsylvania Ave cycletrack
- Bicycle volume doubled after the cycletrack was installed.
- Arterial LOS was similar for motor vehicles on Pennsylvania Avenue before and after the bicycle facilities were installed.
- Danish Bicycle LOS and Bicycle Environmental Quality Index (BEQI) analyses all show significantly improved operations for cyclists with the median bike facilities
- Signal timing for bicycles generally works well between 10th Street and 15th Street, but results in large delays to cyclists between 3rd Street and 9th Street.
- Bike crashes went up 80% after the bike lanes went in (so, not as much as bike traffic went up).
- an average of 42 percent of cyclists arriving on a red signal violated the signal
- most cyclists stopping at red lights stop in the crosswalk or median area rather than behind the white stop bar
15th Street cycletrack
- After the two-way cycle track was installed, there was a 205 percent increase in bicycle volumes (from before conditions) between P Street and Church Street during the p.m. peak hour, and there was a 272 percent increase in bicyclist volumes (from before conditions) between T Street and Swann Street during the p.m. peak hour
- Motor vehicle counts show that volumes are up a little bit on 15th Street before and after the bicycle facilities were installed
- Motor vehicle LOS was basically the same after the cycletrack was installed
- Bicyclists experience less delay on 15th Street between lower E Street and I Street than between I Street and U Street
- The number or crashes again grew, but not as fast as the number of cyclists did (so crash per cyclist went down).
- There are potential issues with the existing design, which uses the pedestrian signal to control cyclist movements
- over 40 percent of cyclists were observed running red lights
- There are now fewer cyclists on the sidewalk
The District Department of Transportation (DDOT) will host a public meeting on Thursday, May 3, 2012 to discuss the results of the Innovative Bicycle Facility Research Project and present and take comments on a proposed protected bike lane for L Street, NW.
The Innovative Bicycle Facility Research Project is a one-year effort to analyze three existing bicycle facilities: (1) bicycle signals and bike boxes at the intersection of 16th Street, U Street, and New Hampshire Avenue, NW; (2) the two-way cycle track on 15th Street, NW between E Street and V Street; and (3) the center median bicycle lanes on Pennsylvania Avenue, NW.An executive summary of the study is now posted online.
The study assesses the operations, safety, and perceptions of the bike facilities through extensive quantitative data collection and analysis, as well as intercept, neighborhood and business surveys. The objectives were to improve the safety and operations of these existing facilities, and guide future DDOT projects, including the proposed L Street, NW protected bike lane.
The proposed L Street protected bike lane between 25th and 12th Streets is planned for summer installation. Separated by flexible posts, the bike lane will be placed on the north side of the road. It will be the second of its kind in the city (15th St was the first), and will provide more protection from cars than a typical bike lane. The plans will be available for review at the meeting.
What: Public Meeting on Innovative Bicycle Facility Research and L Street, NW Protected Bike Lane
When: Thursday, May 3, 20126:30 pm – 8:30 pm
Where: Reeves Center
2nd Floor Community Room
2000 14th Street, NW