A policy on highway types (geometric) 1940 |
Contents
Protection of Crossing Vehicles | 28 |
Design for Left Turns from Divided Highway | 37 |
Shape of Median Strips at Openings | 43 |
3 other sections not shown
Common terms and phrases
2-lane surface 3-lane highways 30 feet 4-lane divided highway acceleration and deceleration accommodate adjacent Assumed Design Speed center line cost CROSS ROAD cross traffic CROWN curbs curves deceleration lanes Design for Left DESIGN PASSENGER VEHICLE design truck design vehicle desirable dividing strip drivers edge of pavement Feet Feet Feet feet in width feet wide grade crossings grade separation guardrail hazard inner lane inside lanes intersecting road Intersections at Grade left turns lengths of opening locations MEDIAN STRIP DESIGNS middle lane miles per hour minimum width narrow median strips parking lanes PATHS OF SHARPEST PAVEMENT DESIGN pedestrians protected position roadway semicircular ends semitrailer service roads shoulders shown in figure sight distance slopes stopped position strips at intersections superelevation tractor-trailers traffic density classification traffic lanes TRUCK OR BUS type of highway type of traffic ultimate development vehicle turning left vehicles making left Vehicles per Hour widening width of median