Strategies

18.1 A Keep vehicles from encroaching into opposite lane

18.1 A1 Install centerline rumble strips for two-lane roads

18.1 A2 Install profiled thermoplastic strips for centerlines

18.1 A3 Provide wider cross sections on two-lane roads

18.1 A4 Provide center two-way left-turn lanes for four- and two-lane roads

18.1 A5 Reallocate total two-lane roadway width (lane and shoulder) to include a narrow "buffer median"

18.1 B Minimize the likelihood of crashing into an oncoming vehicle

18.1 B1 Use alternating passing lanes or four-lane sections at key locations

18.1 B2 Install median barriers for narrow-width medians on multilane roads