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Author Archives: jsallen
Reflective Clothing as Panacea — again.
This photo in a New York Times article shows a bicyclist riding with a reflectorized shirt, which shows up well in a photo taken with flash on the camera, but the bicyclist has NO HEADLIGHT. The manufacturer of the … Continue reading
Posted in Bicycling
7 Comments
Another crosswalk confusion, and a fatality
In response to my post about confused yielding requirements where shared-use paths cross streets, Ryan Reasons has published comments on a recent fatal truck-bicycle crash in the Seattle, Washington area. The photo below is from the KOMO TV/radio station news … Continue reading
Some thoughts about self-driving cars
Google’s report on its self-driving cars: http://static.googleusercontent.com/media/www.google.com/en/us/selfdrivingcar/files/reports/report-0515.pdf Most than half of the collisions reported in this document are slow-speed rear-enders of the Google cars. That’s unusual. It might be that the behavior of the Google cars is more cautious than … Continue reading
Ogden, Utah skateboarder stop
There’s plenty of confusion to go around here. http://www.ksl.com/?nid=148&sid=35631391 Deputy: “I don’t care, you’re right in the middle of the road.” No, the boarder was on the shoulder, at least in the part of the video the TV station broadcast. … Continue reading
Posted in Bicycle facilities, Bicycling, Bike lanes
Tagged law, Ogden, pedestrian, police, sidewalk, skateboard, traffic, Utah, vehicle
1 Comment
Change lanes in a roundabout?
Ohio cyclist Patricia Kovacs posted an e-mail asking some questions about roundabouts: Ohio engineers are telling us to use the inner lane for left turns and U turns. Both the FHWA [Federal Highway Administration] and videos available on our local … Continue reading
Posted in Bicycling, Bike lanes, Roundabouts, traffic circles, Traffic Signals
Tagged bicycle, Bicycling, bike lane, crash, crosswalk, pedestrian, rotary, roundabout, safety, traffic, traffic circle, vehicle, video
13 Comments
Comments on the Ohio roundabout video
I’ve moved the comments here from another post, which was getting long. Here’s the Ohio video: Summarizing my comments about the video, it shows roundabouts, a useful, time-efficient though space-intensive intersection design, but it gives some questionable advice on design … Continue reading
Translation of complete paper on German bikeways 1897-1940
I’ve prepared a full translation of the important paper by Dr. Volker Briese of the University of Paderborn in Germany about the history of German bikeways from 1897 through the start of World War II. This has previously been available … Continue reading
Posted in Bicycle facilities, Bike lanes, Crashes, Cycle tracks
Tagged bicycle, Bicycling, bike lane, bike path, bikeway, Briese, Copenhagen, cycle track, cycle tracks, Europe, Fahrrad, Germany, Henneking, law, Paderborn, Radweg, sidepath, Volker Briese
1 Comment
ShelBroCo Magic Green Paint
Here’s a high-tech product which deserves to be used in every new bicycle infrastructure project. The linked page gives a thorough description and videos!
Posted in Bicycling
2 Comments
Volvo promotes a reflective paint which fades in 10 days!
The last word in safe bicycling, NOT! I mean, this could be a premature April fool’s joke! The Volvo promotion, also touted on the blog The Verge, is more an exercise in creative photography than anything else, but also does … Continue reading
Posted in Bicycling
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Another pretty picture from Indianapolis
Here’s another picture from Indianapolis which I discovered online. Its geometry is slightly distorted, as it is from a screen shot. New York Street, in this picture, makes a two-way pair with Michigan Street, which I discussed in my previous … Continue reading
Posted in Bicycling
7 Comments
