SITUATION. At the exit of a toll gate with a single booth, vehicles arrive at random at an average rate of 20 vehicles per minute. The service has capacity to serve 22 vehicles per minute. Average length of queue formed at the toll gate (veh). 2.55 3.45 4.45 7.46 4

SITUATION. At the exit of a toll gate with a single booth, vehicles arrive at random at an average rate of 20 vehicles per minute. The service has capacity to serve 22 vehicles per minute. Average length of queue formed at the toll gate (veh). 2.55 3.45 4.45 7.46 4

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter9: Capacity And Level Of Service For Highway Segments

Section: Chapter Questions

Problem 21P

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Concept explainers

Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.

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SITUATION. At the exit of a toll gate with a single booth, vehicles arrive at random at an average rate
of 20 vehicles per minute. The service has capacity to serve 22 vehicles per minute.
Average length of queue formed at the toll gate (veh).
<
2.55
3.45
4.45
7.46
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