There is an access road 222m from PI3. Use the information from but assume a practical speed of 80km/hr on this realigned main road with a 3,5m lane and 1,5m shoulder in each direction. Also use a typical access profile in the design of the alignment of the new access to acceptable geometric standards. The shoulder breakpoint is situated 1,0m outside of the shoulder. The realigned road is right turning and superelevation is not to exceed 4%. Also, the access is situated on a transition radius 100m with a transition length of 50m. The BCC
There is an access road 222m from PI3. Use the information from but assume a practical speed of 80km/hr on this realigned main road with a 3,5m lane and 1,5m shoulder in each direction. Also use a typical access profile in the design of the alignment of the new access to acceptable geometric standards. The shoulder breakpoint is situated 1,0m outside of the shoulder. The realigned road is right turning and superelevation is not to exceed 4%. Also, the access is situated on a transition radius 100m with a transition length of 50m. The BCC
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:There is an access road 222m from PI3. Use the information from but assume a practical
speed of 80km/hr on this realigned main road with a 3,5m lane and 1,5m shoulder in each
direction. Also use a typical access profile in the design of the alignment of the new access
to acceptable geometric standards. The shoulder breakpoint is situated 1,0m outside of the
shoulder. The realigned road is right turning and superelevation is not to exceed 4%. Also,
the access is situated on a transition radius 100m with a transition length of 50m. The BCC
SKD is 1450.000. The road has a camber of 2%. Determine FRLS with superelevation
development of the re-aligned main road including left, centre and right hand sides of the
road at the access point only. HAND CALCULATIONS ONLY, absolutely no spreadsheets!!
Station
VC Length
SKD
Level
PI 3
1202
193.40
PI 4
1402
190.60
160
PI 5
1502
185.60
1. Stake Value at access is (1)
a) 1422m
c) 1426m
b) 1424m
d) 1428m
2. Stake Value at maximum crossfall is (1)
a) 1350
c) 1228
b) 1400
d) 1232
3. Superelevation at access is (3)
a) 3.00%
c) 3,92%
e) 3,29%
b) 3,82%
d) 3,28%
f) 4,00%
4. Centreline Height at access is (5)
a) 190,564
c) 191,078
e) 194,462
b) 190,964
d) 191,462
f) 195,836
5. Left Hand Side Road Height at Access is (2)
a) 190,701
c) 191,325
e) 194,599
b) 190,427
d) 191,599
f) 194,325
6. Right Hand Side Road Height at Access is (2)
a) 190,701
c) 191,325
e) 194,599
b) 190,427
d) 191,599
f) 194,32
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