One segment of a two-lane, two-way rural highway is on rolling terrain and currently operates at maximum level of service C conditions. The annual growth rate of traffic on this segment of road is about 5%, and studies shown that it will continue to grow at this rate for the rest of this decade. Assuming a K factor (design hour factor) for this segment of road = 0.13, determine in how many years will the number of lanes have to be increased if the level of service must not be worse than D?

One segment of a two-lane, two-way rural highway is on rolling terrain and currently operates at maximum level of service C conditions. The annual growth rate of traffic on this segment of road is about 5%, and studies shown that it will continue to grow at this rate for the rest of this decade. Assuming a K factor (design hour factor) for this segment of road = 0.13, determine in how many years will the number of lanes have to be increased if the level of service must not be worse than D?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Capacity and Level of Service at Intersections

The term capacity is associated with transportation engineering. Capacity helps to understand how many pedestrians or vehicles can be handled by a transport facility. Level of service is also a term associated with transportation engineering. The level of service indicates the performance of the transport facility.

Question

One segment of a two-lane, two-way rural highway is on rolling terrain and currently operates at
maximum level of service C conditions.
The annual growth rate of traffic on this segment of road is about 5%, and studies shown that it
will continue to grow at this rate for the rest of this decade.
Assuming a K factor (design hour factor) for this segment of road 0.13, determine in how
many years will the number of lanes have to be increased if the level of service must not be
worse than D?

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number of years = log(3) / log(1.05) number of years = 14.2 years

the result is 22.51 years

how didi you get 14.2 years ?

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Capacity and level of service at intersections

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