Study of variable speed limits highlights the trade-off of throughput and safety

Varying a posted speed limit based on current conditions can improve operations and safety in congested work zones, a team from Missouri found. This study from the University of Missouri-Columbus explores this phenomenon in a congested work zone in St. Louis, Missouri. The findings? Results depend on whether DOTs are looking to prioritize safety over capacity.

Washington business community ups support for operations, preservation

The Washington Roundtable, a group comprising many of the state’s largest businesses, is urging passage of a nine-cent increase in the fuel tax. What’s most interesting about the proposal, however, is not the revenue ask, but where the group wants the money to go: for major increases in operations and in system preservation.