# Free on-line mapping s/w with route constraints?

**URL:** <https://boards.straightdope.com/t/free-on-line-mapping-s-w-with-route-constraints/265534>\
**Category:** Factual Questions\
**Created:** [September 22, 2004, 6:30pm UTC](https://boards.straightdope.com/t/free-on-line-mapping-s-w-with-route-constraints/265534 "2004-09-22T18:30:18Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![F.U.Shakespeare](https://avatars.discourse-cdn.com/v4/letter/f/aca169/32.png) [@F.U.Shakespeare](https://boards.straightdope.com/u/F.U.Shakespeare)\
**Post date:** [September 22, 2004, 6:30pm UTC](https://boards.straightdope.com/t/free-on-line-mapping-s-w-with-route-constraints/265534/1 "2004-09-22T18:30:18Z")

</div>

I am taking a road trip from Baltimore to Memphis, and want to see what the time tradeoffs are among several different routes.

I seem to remember that [maps.yahoo.com](http://maps.yahoo.com) used to allow you to constrain the route (e.g., specify taking I-77 vs. I-79). But it doesn’t appear to currently. Am I missing something? And if not, is there anything else available online? Thanks,

---

<div class="post-metadata">

**Author:** ![missbunny](https://avatars.discourse-cdn.com/v4/letter/m/76d3ee/32.png) [@missbunny](https://boards.straightdope.com/u/missbunny)\
**Post date:** [September 22, 2004, 7:37pm UTC](https://boards.straightdope.com/t/free-on-line-mapping-s-w-with-route-constraints/265534/2 "2004-09-22T19:37:06Z")

</div>

Have you tried the Triple A site? You don’t have to have AAA in order to use the mapping service. I believe you can specify roads to avoid.