Samenvatting
Six sections of freeway with different on-and-off ramp spacing were compared in terms of traffic volumes, spot speeds, densities weaves, slow downs, and stoppages. Evidence of interference with flow was found on a highway section with short spacing between two on-ramps and one off-ramp, but less apparent interference on two other sections with short on-and-off ramp spacings. Different volume-density relationships were shown on different sections of the same urban freeway.