Not only do traffic engineers prioritize safety lower than residents, the designs that supposedly increase safety cause more death and destruction. Why? Because motorists behave differently than engineers expect.
Traffic engineers? safety improvements include paving wider lanes and shoulders, removing roadside trees, straightening tight curves, etc.? According to AASHTO standards, ?every effort should be made to use as high a design speed as practical to attain a desired degree of safety.?
Traffic engineers believe that designing for high speed will provide safety.
The crash data, however, show ?wider lanes and shoulders were associated with statistically significant increases in crash frequencies.?
Noland reports that traditional ?road ?safety improvements? actually lead to ? increases in total fatalities and injuries,? because ?this type of approach tends to ignore behavioural reactions to safety improvements?.
Dumbaugh reports that ?a behavior-based understanding of safety performance is supported by research and literature in the field of psychology, which has focused on the subject of traffic safety as a means for understanding how individuals adapt their behavior to perceived risks and hazards.?
We?ve seen that traffic engineers might improve safety by becoming better social scientists. Before following that, however, our next installment of Learning to Love Your Traffic Engineer will look at cost.
Many people regularly bicycle between West Windsor and Princeton, and the WWBPA is frequently asked at the Farmers Market for the safest route to Princeton, which involves crossing Route 1.
We generally recommend Washington Road (CR571) because the traffic circle slows down traffic and lets cyclists make themselves visible to motorists ? unlike, for example, the high-speed ramps off Route 1 at Alexander, Meadow or Quaker Bridge roads.
Since West Windsor, Mercer County and NJDOT have all adopted Complete Streets policies, we were disappointed that no bicycle or pedestrian safety accommodations were evident in the jughandle concept design.
We recommend the following safety improvements to benefit both bicyclists and pedestrians who wish to use or cross Route 1:
1. Add a multi-use path at least on the east side of Route 1 from Alexander Road to Plainsboro, to connect the Dinky Line multi-use path behind the Alexander Road offices to the Penns Neck neighborhood and on to the hospital (and wellness center) in Plainsboro. Improved pedestrian and bicyclist accommodation for Penns Neck will prevent this stretch of Route 1 from becoming as deadly as further north in Middlesex County.
2. Create a safe bicycle route crossing Route 1 using Washington Rd/CR571, for example by reducing the design speed of the jughandle linking southbound Route 1 traffic to CR 571/Washington Road, or by creating a stop from the jughandle before turning right on CR571, to allow drivers an opportunity to look for bicyclists. The current highspeed jughandle merge design will create a dangerous condition for bicyclists traveling the bicycle route between Princeton and Princeton Junction train station.
3. Add marked crosswalks to all legs of the intersections.
4. Add bicycle lanes or sharrows to the improved intersections to guide bicyclists and alert motorists to the safest lane positioning while using the intersections.
5. Add a westbound bicycle crossing at Harrison even though there is no motorized vehicle crossing in that direction.
Monthly meetings are held at 7 p.m. on the second Thursday of the month via Zoom due to Covid. We will eventually resume meeting in the West Windsor Municipal Building. Email us at wwbikeped@gmail.com if you would like the Zoom code.
Find us at the West Windsor Farmers Market (Vaughn Drive parking lot) from 9 a.m. to 1 p.m. every other Saturday from May through Halloween.
Many people regularly bicycle between West Windsor and Princeton, and the WWBPA is frequently asked at the Farmers Market for the safest route to Princeton, which involves crossing Route 1.