1968•Unpublished venueRequires access
EVALUATION OF A SAFETY PROJECT-WIDENING OF M-17 FROM FOUR TO FIVE LANES TO PROVIDE A CENTER LANE FOR LEFT TURNS
Marella Hoffman, A A Lampela, F R Scarcella
Open publisher page 0 citations
Abstract
THE WIDENING OF A FOUR LANE, TWO-WAY SECTION OF A TRUNKLINE (M-17) FROM FOUR TO FIVE LANES IS EVALUATED. THE IMPROVEMENT (WIDENING) EXTENDED FOR A DISTANCE OF APPROXIMATELY 900 FEET (INCLUDING 225 FOOT TAPERS) ON EACH SIDE OF PELHAM, AN INTERSECTING LOCAL ROAD. THE CENTER LANE ON M-17 WAS UTILIZED FOR LEFT TURNS, WITH THE OTHER LANES BEING UTILIZED AS THROUGH LANES. GEOMETRICS ON PELHAM, A FIVE LANE ROADWAY, WERE NOT REVISED. THE STUDY REVEALED A SUBSTANTIAL REDUCTION OF ACCIDENTS, PARTICULARLY THOSE INVOLVING LEFT TURNING VEHICLES, IN THE ONE YEAR PERIOD. THE ANNUAL BENEFIT FOR THE FIRST YEAR AFTER THE IMPROVEMENT WAS $51,822, WHILE THE TOTAL COST OF THE PROJECT WAS $77,000. /AUTHOR/