Example 1: A six-lane urban freeway (three lanes in each direction) is on level terrain with 11-ft lanes, obstructions 2 ft from
the right edge of the traveled pavement, and nine ramps within three miles upstream and three miles downstream of the midpoint of the analysis segment. A directional weekday peak-hour volume of 3000 vehicles is observed, with 810 vehicles arriving in the most congested 15-min period. If the traffic stream has 10% single-unit trucks and 10% tractor-trailer trucks, determine the level of service.
1 answer:
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