Our Valley Road configuration was installed in 2014. Hanover's advisory lane treatment is featured in the Federal Highway Administration Small Town and Rural Multimodal Networks and the Small Town and Rural Design Guide: Facilities for Walking and Biking.
Nearly all the street users interviewed on April 29, 2016 strongly supported the Advisory Lanes, felt more comfortable walking, and judged the pilot condition was equally or more safe than before, according to a follow up report by Peter Kulbacki (Director Hanover Department of Public Works), Erica Wygonik (transportation consultant), Carolyn Radisch (transportation consultant), and Bill Young (Hanover Bike Walk chair). Observers noted children navigating this street safely, as well as the street transforming into a more welcoming place to walk and bike - and this shows up in the numbers! Traffic is down and walking and biking is up. During the pandemic, this was an hot spot of activity for people walking, biking and using mobility assist scooters as there was plenty of space to physically distance due as active transportation is now expected along this stretch.
There is a growing body of research supporting this configuration here in the United States including on rural higher speed roads - https://www.advisorybikelanes.com/, with a 34% reduction in crash rate in the United States. Maine has started using these edge lanes on low volume rural bridges to carve out more space for people walking and biking. (This is similar to how most small bridges function anyway, and the advisory lane striping serves to raise consciousness about and provide more space for people walking and biking.) This configuration is particularly useful when you have a constrained right of way, and is often within a 20 ft roadway in a 5 ft, 10 ft, 5 ft configuration. This is an economical way to increase safety for people walking and biking, and as it turns out, for drivers too, and to build a culture of active mobility.
Summary of Valley Road Advisory Lane 2-9-2017
Summary of Valley Road Advisory Lanes: A Case Study in Hanover, New Hampshire
Erica Wygonik, Bill Young, Peter Kulbacki, Carolyn Radisch
Summary
Advisory Lanes were painted on about 400 meters of Valley Road in the summer of 2014. Valley Road was selected for the pilot project for the following reasons: two-way residential street with 25 mph speed limit and no sidewalks; important transportation link for pedestrians, cyclists and vehicles between downtown, neighborhoods and schools; low volume of traffic; and approval by most of the neighborhood in a survey and public meeting. Advisory lanes were selected due to the high bike/ped activity, sparse road network limiting options, limited right-of-way, maintenance + plowing costs, and relatively low vehicular traffic volume.
Monitoring
As this was a pilot project for the town, monitoring efforts were conducted before and after the installation by a team of volunteer, led by the Hanover Bicycle & Pedestrian Committee, including GPI transportation consultant Carolyn Radisch. Conditions were observed shortly before and 4 and 16 months following installation. Counts were conducted over 12 hours, and surveys of residents and users were also performed at these intervals.
Results
No accidents or other significant problems have occurred. (Prior to the lane reconfiguration to include advisory lanes, a vehicle crash had been noted on Valley Road in New Hampshire Department of Transportation crash statistics.) As summarized in Figure 1, vehicular traffic volume decreased at 4 and 16 months, and the number of pedestrians (walkers, joggers, skate boarders) and bicyclists increased. Observers judged that most vehicles are going slower, but some are still speeding. Objective traffic speed data comparisons are not possible due to data corruption.
Nearly all the street users interviewed on April 29, 2016 strongly supported the Advisory Lanes, felt more comfortable walking, and judged the pilot condition was equally or more safe than before.
Figure 1: 12-Hour Count Data on Valley Road
People walking, biking or driving on the streets and the traffic counters raised the following safety concerns. Two novice preadolescent bicyclists made poor stops as they entered from a side street. They did stop before crossing the advisory lane dashed line but it was close. Two alert drivers slowed down significantly. It is possible the advisory lanes helped both the drivers and cyclists. Second, a lawn care truck was parked for 2 hours in the North advisory lane. All walkers and bikers needed to swing out in to the traffic lane. Third, two regular street pedestrians judged that many cars traveling in the central travel lane pass walkers in the advisory lane with less clearance. In the past cars moved further to the opposite side. No one interviewed reported a close call or accident.
The Town of Hanover, New Hampshire's advisory lanes on Valley Road are featured on p30!
The Town of Hanover, New Hampshire's advisory lanes are featured on p46 (labeled as 2-26)
The table below summarizes the speed and traffic volume guidance by source with regard to advisory or edge lane roads.
For more comprehensive design and planning guidance, consult the Edge Lane Road Design Guidance collected by Michael Williams, a transportation consultant specializing in active transportation.