Videos
Oct
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Aug
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Jul
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Bridges, Construction, Freeway, Patreon Locked, Urban Issues
But HOW can I-95 re-open… in under TWO WEEKS?
Jun
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May
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Apr
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Mar
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Construction, Freeway, Patreon Locked, Safety, Signal/Signage
So, they’re painting ORANGE LINES on freeways now?
Jan
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Jan
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Oct
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Patreon Locked, Safety, Signal/Signage, Urban Issues
Los Angeles THREW AWAY all their RED-LIGHT cameras?
Aug
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Jul
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Jul
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Apr
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Feb
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Patreon Locked, Safety, Signal/Signage, Urban Issues
Can this “HAWK” STOP LIGHT make walking feel SAFE again?
Jan
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Oct
So, you’re having this really nice walk across town when suddenly, there’s a freeway you have to cross. Seeing a large bridges with nice big sidewalks can be a relief. But what about those pesky interchanges where cars are entering and exiting the freeway? It gets a little bit scarier at newfangled designs which work […]
Sep
America loves “diamond” highway exits. Which is too bad, because when life gets busy, they work pretty terribly. Gil Chlewicki, the “adoptive” father of the Diverging Diamond Interchange (DDI), explains why it’s time to untangle our freeway interchanges.
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!
Jun
Raised medians reduce left turns which prevents crashes (and saves lives). But cities only block left turns for some businesses and not others. How can the engineers decide fairly? And what do we do with drivers who still need to turn left? ——————————- Additional reading: ——————————- Federal Highway Administration. https://safety.fhwa.dot.gov/saferjourney1/library/countermeasures/16.htm. Accessed Jun. 9, 2021.
May
Traffic travels in both directions. So it makes sense we’d have a malicious moniker for two-way left turn lanes (TWLTLs). Are they actually dangerous, though? Let’s look at the safety of these middle lanes. After all, they are on roads pretty much everywhere in the United States. ————– Sources cited: ————– Mukherjee, D. Choosing Between […]
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 […]
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 […]
Feb
If we let more people live ¼-mile from the train, everyone saves money.
America is not affordable because building lots are not affordable. And there is not nearly enough people who ride our billion-dollar light/commuter rail trains. Here’s how these two problems solve one another.
Freeway, Patreon Locked, Signal/Signage, Urban Issues
Why do some freeway ramps have an extra red light?
Dec
All you want to do is get on the freeway. Then a seemingly superfluous traffic signal stops you. Do ramp meters work?
Dec
In the 1970s, Arizonans resoundingly voted “NO” to completing Interstate 10 through downtown Phoenix. But that’s because I-10 would have been a ten-story tall freeway bridge through the north of downtown. But the “NO” vote canceled all new freeways, including finishing Interstate 10 coast to coast.
Oct
Trains are wonderful but too expensive for most cities. A bus operating like a train may help smaller places afford quality mass transit.
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 […]
Dec
Western America has not built a single mile of new Interstate constructed since 1980. Here’s how Las Vegas and Phoenix teamed up build one which they desperately need.
Jul
Good riddance to those unsafe little buildings which sit in the middle of high-speed roadways. But without a “cash lane,” how are you supposed to pay a toll on vacation?
Jun
Ever freak out how a big earthquake could drop a bridge right on top of you? I talk with a seismic engineer about the six cool secrets they use to make bridges safe.
May
Thirty years ago a major earthquake destroyed a double-decker freeway, leaving 42 people dead. Here’s the sad history and the lessons engineers have learned.
Apr
Everything is bigger in Texas, including the roads. In the rush to accomodate its swelling population, it may be creating a traffic disaster for the future.
Nov
Signs used to look different at night. Here’s why.
Sep
Here’s the real reason why Caltrans is removing Botts Dots (turtles) from the state’s hundreds of miles of freeway (Hint: It has something to do with Tesla). Enjoy my video? https://www.patreon.com/roadguyrob
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
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
Mar
Marty McFly would struggle to find a safe to skateboard to the Twin Pines Mall. What this tells us about pedestrian safety in the real world.
Jan
Why you should stop fighting the speeders and start blaming the roadway itself.
Apr
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Apr
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Apr
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Apr
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