Recent Geometric Design Research for Improved Safety and OperationsTRB's National Cooperative Highway Research Program (NCHRP) Synthesis 299: Recent Geometric Design Research for Improved Safety and Operations reviews and summarizes selected geometric design research published during the 1990s, particularly research with improved safety and operations implication. |
Contents
CHAPTER FOUR | 43 |
CHAPTER FIVE INTERSECTIONS | 60 |
CHAPTER SIX INTERCHANGES | 97 |
Copyright | |
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AASHTO Access Management accident experience accident rates alignment analysis areas at-grade intersections continuous flow intersection crash criteria curb deceleration design speed design vehicle developed diamond interchange driveway Engineering evaluated exit facilities Federal Highway Administration FHWA four-lane freeway frontage roads geometric design grade Green Book guidelines Harwood Highway Design horizontal curves improvements increase interchange jughandle km/h length locations loop ramps main intersection median minimum National Research Council NCHRP Report needs offset older drivers operating speed passenger cars pavement pedestrian percent portation Research projects radii radius ramp terminal recommended reduce right-of-way right-turn lanes road roadside roadway roundabouts rural highways shoulder sight distance signalized intersections single-point urban interchanges SPUI suburban highways superelevation superstreet Table tangent tion traffic volumes Transportation Research Board Transportation Research Record trucks TWLTL two-lane rural U-turn unsignalized urban arterial vertical curves Washington