Unformatted text preview: 2/13/2019
VOLUME- CAPACITY RATIO AND LOS
LEVEL OF SERVICE
VOLUME- CAPACITY RATIO
Less than 0.20
Traffic volume is defined as the number of vehicles that
g a spectra given lane or direction of
a highway. during a specified tim
- Average Annual ally Traffic: (AADD):
ally Traffic (ADTraffic (AAWT):
Greater than 1.0
- Average Weekday Traffic (AWT)
Note: The unit is vehicles per day (vpd).
Source: Ministry of Public Works and Highway 1982
Daily volumes are used to establish trends over time and
Daily volumes generally
ction or lane but are totals for an entire facility at the
DESIGN TRAFFIC VOLUMES (DESIGN VOLUME)
Normally, highways do not have balanced flow in
both directions during peak hours.
One direction is usually heavier than the other.
Thus, it is necessary to consider the direction of
heavier flow for design....
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- Spring '15