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Traffic-engineering Questions Set 12:

Quiz Mode

The shape of the STOP sign according to IRC: 67-2001 is

Octagonal

Square

Circular

Hexagonal

Solution:

The average spacing between vehicles in a traffic stream is 50 m, then the density (in veh/km) of the stream is

Solution:

The shape of the most commonly designed highway vertical curve is

Parabolic

Circular single radius

Circular multiple radius

Spiral

Solution:

Calculate the braking distance if the speed of the vehicle is 80 km/h and the longitudinal friction coefficient is 0.3.

67 m

72 m

84 m

95 m

Solution:

If the aggregates are exceptionally strong then they are having impact value which is?

Less than 10

Less than 15

Less than 30

Greater than 30

Solution:

In marshal testing of bituminous mixes, as the bitumen content increases the flow value

Remains constant

decreases first and then increases

Increases monotonically

increases first and then decreases

Solution:

The relation between speed u (in km/h) and density k (number of vehicles/km) for a traffic stream on a road is u = 70 – 0.7k. The capacity on this road is _________ vph (vehicles/hour).

2000

1750

550

1050

Solution:

If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maxi-mum capacity of a traffic lane at a speed of 10 m/sec is

1500 vehicles per hour

2000 vehicles per hour

2500 vehicles per hour

3000 vehicles per hour

Solution:

For a 2° curve on a high-speed Broad Gauge (BG) rail section, the maximum sanctioned speed is 100 km/hr and the equilibrium speed is 80 km/h. Consider dynamic gauge of BG rail as 1750 mm. The degree of curve is defined as the angle subtended at its Centre by a 30.5 m are. The cant deficiency for the curve (in mm, round off to integer) is

50 mm

57 mm

43 mm

79 mm

Solution:

The following stresses were determined for a right pavement
(i) Wheel load stress at corner = 30 kg /cm²
(ii) Warping stress at corner during summer = 9 kg/ cm²
(iii) Warping stress at corner during winter =7 kg/ cm²
(iv) Frictional stress during summer = 5 kg/ cm²
(v) Frictional stress during winter = 4 kg/ cm²
What is the maximum stress experienced at the corner of the pavement (in kg/ cm² )

40 kg/ cm²

42 kg/ cm²

39 kg/ cm²

29 kg/ cm²

Traffic-engineering Questions Set 12:

The shape of the STOP sign according to IRC: 67-2001 is

Solution:

The average spacing between vehicles in a traffic stream is 50 m, then the density (in veh/km) of the stream is

Solution:

The shape of the most commonly designed highway vertical curve is

Solution:

Calculate the braking distance if the speed of the vehicle is 80 km/h and the longitudinal friction coefficient is 0.3.

Solution:

If the aggregates are exceptionally strong then they are having impact value which is?

Solution:

In marshal testing of bituminous mixes, as the bitumen content increases the flow value

Solution:

The relation between speed u (in km/h) and density k (number of vehicles/km) for a traffic stream on a road is u = 70 – 0.7k. The capacity on this road is _________ vph (vehicles/hour).

Solution:

If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the theoretical maxi-mum capacity of a traffic lane at a speed of 10 m/sec is

Solution:

Solution:

Solution:

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