• Expanding the use of flashing yellow arrow signals at some intersections to give a clearer indication that drivers can turn left after yielding to any opposing traffic.

• Changing the formula used to calculate crosswalk times to give walkers more time.

• Identifying electronic toll collection lanes with purple signs – the first time purple has been sanctioned for use on highway signs.

• Adding overhead lane-use control signs to reduce confusion among drivers in unfamiliar multi-lane roadways.

For an overview of the new rules and recommendations, visit http://mutcd.fhwa.dot.gov or click here for Part II: Department of Transportation Federal Highway Administration 23 CFR Part 655 National Standards for Traffic Control Devices; the Manual on Uniform Traffic Control Devices for Streets and Highways; Revision; Final Rule.