Transportation Engineering - Online Test
Q1. The capacities of “ One-way 1.5 m wide sidewalk (persons per hour)” and “
One-way 2 lane urban road (PCU per hour, with no frontage access, no standing
vehicles and very little cross traffic)” are respectively
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. The shape of the STOP sign according to IRC:67-2001 is
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. A roundabout is provided with an average entry with of 8.4 m, width of weaving
section as 14 m, and length of the weaving section between channelizing islands
as 35 m. The crossing traffic and total on the weaving section are 1000 and 2000
PCU per hour respectively. The nearest rounded capacity of the roundabout ( in
PCU per hour) is
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. It is proposed to widen and strength and existing 2-lane NH section as a divided highway. The existing traffic in one direction is 2500 commercial vehicles (CV) per day. The construction will take 1 year. The design CBR of soil subgrade is found to be 5 per cent. Given : traffic growth rate for CV = 8 per cent, vehicle damage factor =3.5 (standard axles per CV), design life = 10 years and traffic distribution factor =0.75. The cumulative standard axles (msa) computed are
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. A linear relationship is observed between speed and density on a certain section
of a highway. The free flow is speed is observed to be 80 km per hour and the
jam density is estimated as 100 vehicles per km length. Based on the above
relationship, the maximum flow expected on this section and the speed at the
maximum flow will respected be
Answer : Option D
Explaination / Solution:
No Explaination.
Q6. A road is provided with a horizontal circular curve having deflection angle of 55o and centre line radius of 250 m. A transition curve is to be provided at each end
of the circular curve of such a length that the rate of gain of radial acceleration
is 0.3 m/s3 at a speed of 50 km per hour. Length of the transition curve required
at each of the ends is
Answer : Option C
Explaination / Solution:
No Explaination.
Q7. A horizontal curvature curve with a centre line radius of 200 m is provided on
a 2-lane, 2-way SH section. The width of the 2-lane road is 7.0 m. Design speed
for this section is 80 km per hour. The brake reaction time is 2.4 s, and the
coefficients of friction in longitudinal and lateral directions are 0.355 and 0.15,
respectively.
The set-back distance from the centre line of the inner lane is
Answer : Option C
Explaination / Solution:
No Explaination.
Q8. If the jam density is given as kj and the free flow speed is given as uf, the
maximum flow for a linear traffic speed-density model is given by which of the
following options?
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. If v is the initial speed of a vehicle, g is the gravitational acceleration, G is the
upward longitudinal slope of the road and fr is the coefficient of rolling friction
during braking, the braking distance (measured horizontally) for the vehicle to
stop is
Answer : Option B
Explaination / Solution:
No Explaination.
