roadway covered with hard packed
Assignment No. 6
snow
A car is traveling at 10 mph on a
(coefficient of road adhesion of 0.20). The car has CD = 0.30, Af = 20 ft2, and W = 3000 lb. The
wheelbase
is 1
CEE207T
TransportationEngineering
gHom
meworkNo.4
4SolutionKey
y
Fall
l2013
Departme
entofCivil&EnvironmentalEngineerin
ng
LehighUniv
versity
Statement:TOTALASS
T
SIGNMENT
TPOINTS6 0=55+5(forneatn
nes
Problem 4:
Vehicles arrive at a highway (US22) cross section with 2lanes per direction at a flow rate of
2000 vphpl. The highway capacity is 2400 vphpl.
Assignment No. 9,
Basic overview, configuration and relationships for horizontal curve alignment and design:
D
M R 1 cos
LC 2R sin
2
ER
2
L
1
100
D
1
cos 2
5729.6
R
T R tan
2
Rv
2
V
g f s e
Spiral
C
Problem 1
Suppose that Lehigh gets a new President who wants the STOP signs removed from the
University Walk pedestrian crossing of Packer Avenue (near the bus stop). Name at least two
traffic calming