At one point, Los Angeles had over 100 cameras to catch red-light runners. Then the city tore ’em all out. Here’s why. Research: “Police look to cameras to catch traffic violators”The Los Angeles Times, 13 Jun 2000, p.B4A “Voices: A Green Light on Red-Light Cameras”The Los Angeles Times, 8 Sep 2001, p.B21 “Red-Light Cameras Focus […]
Tag Archives: stoplights
09
Jul
Jul
Some stop lights are broken. Even if every corner had a red-light camera, many people would still run red lights. Here are the three toolkits engineers use to reduce or eliminate red-light running— often without a camera!
01
Jul
Jul
Red-light cameras seem to magically know when a driver runs a red light. Here’s how engineers build real technology to take pictures of cars that don’t stop.
28
Feb
Feb
Crossing the street on your bike should be easy and safe. Stop lights to help you, also invite cars onto your bike route. Engineers in Tucson, Arizona solve this dilemma with two special signals just for bicycles (Toucans and BikeHAWKs).
Patreon Locked, Safety, Signal/Signage, Urban Issues
Can this “HAWK” STOP LIGHT make walking feel SAFE again?
17
Jan
Jan
Middle-of-the-block crosswalks are terrible. Most do not qualify for a stop light. I meet the inventor of the Pedestrian Hybrid (HAWK) beacon, a traffic device that fixes America’s forgotten crosswalks.
24
Jul
Jul
Avid bicyclists roll their eyes as state engineers rebuild a highway through town. Tyranny of the car, right? Here’s a project in Utah which added a raised median that unlocked an avalanche of really cool safety improvements — including a traffic signal just for bikes!
06
Apr
Apr
The light turns yellow and you find yourself in a panic. Should I slam on my brakes and risk getting rear-ended? Or should I run the yellow— and possibly in the process, the red too? Every stop light on the planet has one of these “A BAD PLACES.” Radar technology can act like a life […]
03
Mar
Mar
Getting a red light ticket feels really crummy. When yellow lights (“change intervals”) are set long enough, red light runners vanish. For safety, why don’t we double or triple the length of yellow lights? Check out pt. 2: Our brains and yellow lights — https://youtu.be/P_EmAKRrlBc ——————————- Sources cited: ——————————- “Guidelines for Timing Yellow and All-Red […]
30
Dec
Dec
All you want to do is get on the freeway. Then a seemingly superfluous traffic signal stops you. Do ramp meters work?
13
Oct
Oct
Trains are wonderful but too expensive for most cities. A bus operating like a train may help smaller places afford quality mass transit.
10
Aug
Aug
How does a traffic signal knows when to turn green? Especially late at night when you are the only driver on the road. In this video, I chat with two traffic signal experts: Mohammed Bendelhoum, an engineer with the California Dept. of Transportation (Caltrans) and Brian Girardo (Iteris) explore the history of vehicle detection (induction […]
08
Aug
Aug
It’s called a ‘Continuous Flow Intersection.’ I take a quick look at traffic signal engineering and how this new type of displaced left-turn improves traffic flow by 30 percent. Enjoy my video? I wouldn’t say “no” to a chocolate shake 🙂 https://www.patreon.com/roadguyrob
01
Aug
Aug
Traffic signals are not scary. Roundabouts can be, especially if you’ve never driven one before. Let’s take a fun dive into America’s fastest-growing transportation design. Are these spinny circles really better that a traffic light or just a passing fad? Enjoy my video? https://www.patreon.com/roadguyrob