CONDITIONS FOR USING SEMI-DIRECT RAMPS AT GRADE SEPARATED JUNCTIONS

EINSATZBEDINGUNGEN FUER HALBDIREKTE RAMPEN IN PLANFREIEN KNOTENPUNKTEN

AT PRESENT THERE ARE NO AVAILABLE CRITERIA FOR USING SEMI-DIRECT RAMPS AT MOTORWAY JUNCTIONS. EXTENSIVE RESEARCH HAS ALREADY BEEN CARRIED OUT, AMONG OTHER THINGS IN ASSOCIATION WITH THE DRAFT OF THE SPECIFICATIONS RAL-K-2, WHICH NOW MAKE IT POSSIBLE TO RELATE RELIABLE DATA ON THE CAPACITY, SAFETY AND ECONOMICS OF THE SEMI-DIRECT RAMP ON MOTORWAY JUNCTIONS TO THE QUALITY OF THE TRAFFIC FLOW. THE RESEARCH IS TO STUDY THESE RELATIONS WITH THE AIM OF DERIVING PRACTICAL CONDITIONS FOR USING SEMI-DIRECT RAMPS. THE RESULTS ARE TO BE INCLUDED IN THE SPECIFICATIONS RAS-K.