A curved segment of an existing road has a radius of 180 m, which restricts the posted speed limit for that segment to 75% of the speed limit of the road. If this segment of the road is to be improved so that the posted speed limit is that of the rest of the road, determine the radius of the improved segment. The maximum superelevation allowed is 8%.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A curved segment of an existing road has a radius of 180 m, which restricts the posted speed limit for that segment to 75% of the speed limit of the road. If this segment of the road is to be improved so that the posted speed limit is that of the rest of the road, determine the radius of the improved segment. The maximum superelevation allowed is 8%.

max
GR
ema x
レ
gR
emax =
0:75 Vmaa
g ge
O.o8 X 9.81x 180
Vraa =
163 km
Vmax = 15-84 /
I hr
3600
Vmar
57.05 kmph
Transcribed Image Text:max GR ema x レ gR emax = 0:75 Vmaa g ge O.o8 X 9.81x 180 Vraa = 163 km Vmax = 15-84 / I hr 3600 Vmar 57.05 kmph
gien
radino R=180m
Seo Speed limit is 75% af m
0.75 Vmax
maximum Superelevat
Cmax
8%. - O-o8
Transcribed Image Text:gien radino R=180m Seo Speed limit is 75% af m 0.75 Vmax maximum Superelevat Cmax 8%. - O-o8
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