Dynamic message signs (DMS) are used by transportation operating agencies to communicate traffic information to motorists. A webinar, hosted by the Federal Highway Administration’s Traffic Management Center Pooled Fund Study, will focus on the importance of consistent and effective DMS message design for highway traffic incidents and work zones. The webinar will also cover DMS message format, reading time, and legibility. The free webinar will take place on September 14, 2011, from 11:00 a.m. to noon CT.