It's that time of year for Back to School, so let's take an opportunity to review the ABC's of Traffic. 

A few years back this handout was a staple for many of the MoboTrex classes. We have requests for it from the "old timers" and the "new kid on the street", so here it is again. 

As with time, signal requirements change so here's some updated signal terms from the FWHA.

And finally, here is a video of a lecture for "Introduction to Transportation Engineering" class by David Levinson, University of Minnesota.