interstate/off ramp signing

[jeremyk55]

Is there a minimum distance between guide signs on an off ramp that splits beyond the mainline. I have found suggested spacing for mainline signing in the MUTCD, but nothing that suggests minimum spacing with respect to speed.

 

[ACtrafficengr]

ITE's TCD Handbook recommends sign spacing of 5 to 7 times the speed limit, in feet.

Of course, the more complex the message is, the more time drivers will need to read adn comprehend it, so if you have a complex guide sign, you may need even more distance.

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"Come to think of it, there are already a million monkeys typing on a million typewriters, and the Usenet is NOTHING like Shakespeare.

- Blair Houghton

 

[jeremyk55]

I have been trying to find a copy of the TCD handbook with no success. ITE doesn't list it on their website and I can only find brief references to it when searching the internet. Do you know where it is available or do you have the library of congress number, isbn, etc?

 

[ACtrafficengr]

Try

http://www.ite.org/cgi-bin/searcht.cgi?wh=S&kw=device&sw=3&de=0&it=

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"Come to think of it, there are already a million monkeys typing on a million typewriters, and the Usenet is NOTHING like Shakespeare.

- Blair Houghton