PDF · júní 2006

Traffic Stream Modell­ing of Road Facilities, grein birt á ráðstefnu TRA (Tran­sport Rese­arch Arena) sem hald­in var í Gauta­borg í júní 2006 (verk­efnið var einnig styrkt af RANNÍS)

Data from traffic detectors were used to study traffic flow characteristics on four different road facilities. Two urban highways, an arterial and a rural highway were analysed.
With statistical analysis of the data, various classical traffic flow models have been used to fit the data. Five minutes intervals were analysed and the average speed, flow and density were estimated. The four parameters model proposed by Van Aerde gave the best results. Based on the Van Aerde model the free flow speed, speed at maximum flow, maximum flow and density at jam were determined. These parameters were compared for the different road facilities, as well as the relationship between headways and given speed.