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ESE CE: Transportation Engineering Champion Quiz 2
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Question 1
A pavement designer has arrived at a design traffic of 100 million standard axles for a newly developing national highway as per IRC:37 guidelines using the following data : design life = 15 years, commercial vehicle count before pavement construction = 4500 vehicles/day, annual traffic growth rate = 8%. The vehicle damage factor used in the calculation was
Question 2
A traffic survey conducted on a road yields an average daily traffic count of 5000 vehicles. The axle load distribution on the same road is given in the following table
The design period of the road is 15 years, the yearly traffic growth rate is 7.5% and the load safety factor (LSF) is 1.3. If the vehicle damage factor (VDF) is calculated from the above data, the design traffic (in million standard axle load, MSA) is ________. (standard axle load = 8160kg ∼ 8.2 tonnes)
The design period of the road is 15 years, the yearly traffic growth rate is 7.5% and the load safety factor (LSF) is 1.3. If the vehicle damage factor (VDF) is calculated from the above data, the design traffic (in million standard axle load, MSA) is ________. (standard axle load = 8160kg ∼ 8.2 tonnes)
Question 3
The speed–density (u – k) relationship on a single lane road with unidirectional flow is u = 70 – 0.7 k, where u is in km/hr and k is in veh/km. The capacity of the road (in veh/hr ) is _________
Question 4
Design parameters for a signalized intersection are shown in the figure below. The green time calculated for major and minor roads are 34 and 18 s, respectively.
The critical lane volume on the major road changes to 440 vehicles per hour per lane and the critical lane volume on the minor road remains unchanged. The green time will
The critical lane volume on the major road changes to 440 vehicles per hour per lane and the critical lane volume on the minor road remains unchanged. The green time will
Question 5
A vehicle negotiates a transition curve with uniform speed v. If the radius of the horizontal curve and the allowable jerk and R and J, respectively, the minimum length of the transition curve is
Question 6
The perception–reaction time for a vehicle travelling at 90 km/h, given the coefficient of longitudinal friction of 0.35 and the stopping sight distance of 170 m (assuming g = 9.81 m/s2, is _______ seconds.
Question 7
A single lane unidirectional highway has a design speed of 65kmph. The percept ion-brake-react ion time of drivers is 2.5 seconds and the average length of vehicles is 5m. The coefficient of longitudinal friction of the pavement is 0.4. the capacity of this road in terms of vehicles per hour per lane is
Question 8
In signal design as per Indian Roads Congress specifications, if the sum of the ratios of normal flows to saturation flow of two directional traffic flow is 0.50 and the total lost time is 10 seconds, the optimum cycle length in seconds is
Question 9
A roundabout is provided with an average entry width 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 traffic on the weaving section are 1000 and 2000 PCU per hour respectively. The nearest rounded capacity of the roundabout (in PCU per hour) is
Question 10
Temperature stresses in concrete pavements may cause the slab to crack. If a slab cools uniformly then the crack will develop at the following locations of the slab
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Sep 29ESE & GATE CE
