How do engineers make ROAD SIGNS look the same?

What makes traffic-control devices uniform from coast to coast? It's all thanks to a magical book engineers use called the Manual on Uniform Traffic Control Devices (MUTCD).

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Sources cites:
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Time sections:
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Introduction (0:00)
History of the MUTCD (3:15)
Red Signs (6:19)
White Signs (8:14)
State Variations (10:38)
Yellow Signs (11:28)
Green Freeway Signs (15:00)
Green Street Signs (18:55)
Blue General Signs (21:26)
Blue Specific Signs (22:54)
Brown Signs (25:27)
Conclusion (26:48)

[MarkReviews]

Every time I think we’ve reached “Peak Road Guy Rob”, you outdo even yourself. Your videos just get better and better! Keep it coming!

[MonotoneTim]

Rob, you’re great, everything you make is fantastic and your enthusiasm has legitimately made me more appreciative of public infrastructure.

[schmitty]

The pictures for road signs in Europe are important because of all the different languages being spoken. Pictures are easier to figure out once you know what each one means. Took a day or two to get the hang of it when we drove around Europe a couple years ago but once you get it, its great.
I'm also glad we are getting a new MUTCD and can get it published before 2024.

[mphRagnarok]

I love this channel so much. Material is so pure and concentrated on the advertised topic. Such high quality production that is better than actual educational TV.

[KhAnubis]

You know, I‘ve always wondered why Oregon speed limits signs only said speed. Now I finally know the answer I‘ve been seeking since I was 8!

[barcancelN]

I would be so down for an entire hour-long video on freeway signs, those big green signs are what got me interested in roads and highways in the first place!

[garrisonsan]

12:06 the "Obey warning signs state law" is only used in advance of construction zones to remind people that the orange work zone signs have the force of normal regulatory signs. If you look in the TMUTCD, that sign is only found in part 6 (Temporary Traffic Control). Outside of construction zones, yellow signs don't typically carry the threat of a ticket.

[slep]

If you went over everything in the MUTCD I’d happily watch all of it. Great video as always!

[audiencemember]

"This video is a incredibly long." ?? This video is incredibly entertaining! You have really kicked it up a few notches. So many edits in this! Amazing! "We could easily spend over an hour just talking about freeway signs." Bring it on!! (Or make it it two parts.)

[garcjr]

The MUTCD also has an entire section in metric for every road sign speed or distance. It's only used in Puerto Rico, Guam, other territories, and Interstate-19.

[thrownchance]

7:00 retro reflectivity actually means "where it came from". i.e. it reflects back to its origin. i.e. your headlights. You see it because they have a certain dispersion built in, that reflects light back in a cone.

[NoTimeForNoodles]

I’d love to see a video about state routes, their signs, and their histories/differences, and perhaps as well about their connection to US Routes and Interstates!

[CharlesGorby]

The amount of quality and effort put into this video is incredible! Keep it up Rob

[microcolonel]

The lovingly crafted knockoff brands are choice. I appreciate the attention to detail.

[custardo]

That the stop sign is the first sign in the book says a lot about US road design. In the Netherlands and Belgium for example, yield comes before stop. Stop signs are relatively rare here anyway. Certainly not something you'll find on every corner.

[chris-hayes]

The sign editing was extremely well done.

[FlawedCoil]

Ever since I was a small kid, I have always had a fascination with traffic signs, signals, cones, etc. Now I even collect them! I can't stand to see them knocked down or have a bolt fall out of them. Like if I see a stop sign in a parking lot that is hanging upside down because the top bolt fell out, I have to buy a new bolt/nut to refasten the sign to the post or else it drives my OCD nuts. My local Meijer store knows I often take care of their stop signs and even gave me one of their old stop signs they were replacing as a reward, which was pretty cool!

[davidkaplan]

I like the relatively new practice of painting the route options in each freeway lane as you approach interchanges.

[I_am_Allan]

I expect - and _respectfuly_ request - a video, on road markings.
Especially the new(ish) orange road markings for construction zones.

[BenHereAWhile]

I never though I'd be excited for a half hour video on road signs, but here we are