×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Distance between on- and off- ramps

Distance between on- and off- ramps

Distance between on- and off- ramps

(OP)
I'd be grateful for a link to information (e.g. highway Dept. design rules) about recommmended minimum distance along a freeway from an on-ramp to the next off-ramp.

RE: Distance between on- and off- ramps

Te AASHTO "Green Book" (A Policy on the geometric design...) has a section on this, but it's not on line.  Any good engineering library should have a copy.

Check your state's DOT's website.  NY and CT have their state highway design manuals on line.  Others may, too.

RE: Distance between on- and off- ramps

(OP)
Thanks for your helpful message. I'm in the UK but thanks to Google I found the NY DOT site in seconds, and its highway design manual told me more than I wanted to know ! (Does each state have its own manual ? Are they different ?)

RE: Distance between on- and off- ramps

I only know about NY, Connecticut, and Pennsylvania.  They all have their own manuals.  NY's is loosely based on the AASHTO book mentioned earlier, which is written by a committee of reperesentatives of all 50 state DOT's.

Your Ministry of Transport probably has its own standards, which may or may not be the same as NY's.  I'd assume the principles are the same, however.

RE: Distance between on- and off- ramps

Hi!
Ideally one mile!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources