The DOT said the change will create a consistent 45-mph. speed limit along Glenwood between Oberlin Road and the Westgate/Lumley Road intersection.
Safety was the reason cited for the change. In a news release, the department said a traffic study requested by the City of Raleigh determined the limited sight distance caused by the hilly terrain and the 55 m.p.h. speed limit were contributing factors in a majority of crashes along the stretch of road.
"From May 2006 through April of this year, there were 588 crashes, with 421 of them (72 percent) being rear-end type collisions that can reasonably be attributed to the limited sight distance for drivers as they approach stopped or turning vehicles," said the DOT.
Orange markers were installed atop the lower speed limit signs Friday to make them more noticeable to drivers.