Explain fundamental differences between how LOS is determined for the automobile mode compared with human-powered modes.
What will be an ideal response?
The procedures for the automobile LOS deal with the computation of the level of service at each lane group, intersection approach, and at the intersection as a whole. The LOS at each intersection approach and the entire intersection is represented by only the control delay, while the LOS for a lane group is represented by both the control delay and the volume to capacity ratio. Six levels of service are
prescribed. The criteria for each are shown in Table 10.1. The criteria for the non-automobile modes are based on scores that are computed from factors that can be described as either performance measures such as pedestrian delay or are indicators of the intersection characteristics such as pedestrian corner circulation area. The relationship between the computed scores and the LOS was obtained from the results of a survey in which travelers rated their perceived quality of service for a specific crossing of a signalized intersection. Table 10.2 gives the relationship between the scores and the LOS for the nonautomobile mode.
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a. wireway b. switchgear c. busway d. metering cabinet
The birth of agriculture occurred approximately ____ years ago in ____
a. 3,000; the Netherlands b. 5,000; ancient Persia c. 10,000; the Fertile Crescent d. 12,000; China
Describe a rasp-cut file and its uses
What will be an ideal response?
When a manual service valve is backseat cracked:
A) Both the service port and the line are open to the system. B) The service port is open and the system is closed to the line. C) The service port is closed and the system is open to the line. D) Both the service port and the line are closed to the system.