GATE Civil Engineering

$$ \text { Match the following in Column I with Column II. } $$ Column I Column II 1. Vehicle Damage Factor A. Stability of subgrade soil 2. Passenger Car Unit B. Capacity of a roa...

On a two-lane highway, a horizontal curve of radius 300 m is provided. The design speed is $80 \mathrm{~km} / \mathrm{h}$. If the longest wheelbase of vehicle expected on this high...

The maximum degree of the curve that can be used for railways in a mountainous region is

After applying the correction for elevation and temperature, the runway length is 700 m . The corrected runway length (in m ) for an effective gradient of $1 \%$ is __________ (rou...

Which of the following statements is/are INCORRECT?

The recommended minimum traffic growth rate and design period considered for structural design of flexible pavements for national highways in India as per IRC 37:2018 is _________...

All the vehicles that come during a particular peak hour come during a 10-minute period within this hour. The 15 -minute peak hour factor for this peak hour is

The free flow speed of a highway is 100 km/h and its capacity is 4000 vehicle/h. Assume speed density relation is linear. For a traffic volume of 2000 vehicle/h, choose all the pos...

The free mean speed is 60 km/hr on a given road. The average space headway at jam density on this road is 8 m. For a linear speed-density relationship, the maximum flow (in veh/hr/...

A car is travelling at a speed of 60 km/hr on a section of a National Highway having a downward gradient of 2%. The driver of the car suddenly observes a stopped vehicle on the car...

As per the International Civil Aviation Organization (ICAO), the basic runway length is increased by $x$ (%) for every $y$ (m) rise in elevation from the Mean Sea Level (MSL). The...

The free mean speed is 60 km/hr on a given road. The average space headway at jam density on this road is 8 m. For a linear speed-density relationship, the maximum flow (in veh/hr/...

The number of trains and their corresponding speeds for a curved Broad Gauge section with 437 m radius, are 20 trains travel at a speed of 40 km/hr 15 trains travel at a speed of 5...

The following data is obtained from an axle load survey at a site: Average rear axle load = 12000 kg Number of commercial vehicles = 800 per day The pavement at this site would be...

A bird is resting on a point P at a height of 8 m above the Mean Sea Level (MSL). Upon hearing a loud noise, the bird flies parallel to the ground surface and reaches a point Q whi...

The longitudinal sections of a runway have gradients as shown in the table. End to end for sections of runway (m) Gradient (%) 0 to 200 +1.0 200 to 600 −1.0 600 to 1200 +0.8 1200 t...

In general, the outer edge is raised above the inner edge in horizontal curves for

Various stresses in jointed plain concrete pavement with slab size of 3.5 m × 4.5 m are denoted as follows: Wheel load stress at interior = $S_{wl}^i$ Wheel load stress at edge = $...

The consolidated data of a spot speed study for a certain stretch of a highway is given in the table. Speed range (kmph) Number of observations 0 - 10 7 10 - 20 31 20 - 30 76 30 -...

A horizontal curve of radius 1080 m (with transition curves on either side) in a Broad Gauge railway track is designed and constructed for an equilibrium speed of 70 kmph. However,...

A vertical summit curve on a freight corridor is formed at the intersection of two gradients, +3.0% and −5.0%. Assume the following: - Only large-sized trucks are allowed on this c...

As per the Indian Roads Congress guidelines (IRC 86: 2018), extra widening depends on which of the following parameters?

For a horizontal curve, the radius of a circular curve is obtained as 300 m with the design speed as 15 m/s. If the allowable jerk is 0.75 m/s 3 , what is the minimum length (in m,...

Which of the following options match the test reporting conventions with the given material tests in the table? Test reporting convention Material test (P) Reported as ratio (I) So...

Which of the following is equal to the stopping sight distance?

As per the Indian Roads Congress guidelines (IRC 86: 2018), extra widening depends on which of the following parameters?

Consider the Marshall method of mix design for bituminous mix. With the increase in bitumen content, which of the following statements is/are TRUE?

A horizontal curve is to be designed in a region with limited space. Which of the following measure(s) can be used to decrease the radius of curvature?

A two-phase signalized intersection is designed with a cycle time of 100 s. The amber and red times for each phase are 4 s and 50 s, respectively. If the total lost time per phase...

At a traffic intersection, cars and buses arrive randomly according to independent Poisson processes at an average rate of 4 vehicles per hour and 2 vehicles per hour, respectively...

The vehicle count obtained in every 10 minute interval of a traffic volume survey done in peak one hour is given below. Time Interval (in minutes) Vehicle Count 0 - 10 10 10 - 20 1...

A single-lane highway has a traffic density of 40 vehicles km. If the time-mean speed and space-mean speed are 40 kmph and 30 kmph, respectively, the average headway (in seconds) b...

It is given that an aggregate mix has 260 grams of coarse aggregates and 240 grams of fine aggregates. The specific gravities of the coarse and fine aggregates are 2.6 and 2.4 resp...

For a traffic stream, V is the space mean speed, k is the density, q is the flow. V f is the free flow speed, and k f is the jam density. Assume that the speed decreases linearly w...

The base length of the runway at the mean sea level (MSL) is 1500 m. If the runway is located at an altitude of 300 m above the MSL, the actual length (in m) of the runway to be pr...

A parabolic vertical crest curve connects two road segments with grades +1.0% and $$-$$2.0%. If a 200 m stopping sight distance is needed for a driver at a height of 1.2 m to avoid...

In an urban area, a median is provided to separate the opposing streams of traffic. As per IRC:86-1983, the desirable minimum width (in m, expressed as integer) of the median, is _...

Peak Hour Factor (PHF) is used to represent the proportion of peak sub-hourly traffic flow within the peak hour. If 15-minute sub-hours are considered, the theoretically possible r...

While aligning a hill road with a ruling gradient of 6%, a horizontal curve of radius 50 m is encountered. The grade compensation (in percentage, up to two decimal places) to be pr...

A super-elevation e is provided on a circular horizontal curve such that a vehicle can be stopped on the curve without sliding. Assuming a design speed v and maximum coefficient of...

A motorist traveling at 100 km/h on a highway needs to take the next exit, which has a speed limit of 50 km/h. The section of the roadway before the ramp entry has a downgrade of 3...

A superspeedway in New Delhi has among the highest super-elevation rates of any track on the Indian Grand Prix circuit. The track requires drivers to negotiate turns with a radius...

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 (assume g = 9.81 m...

A road is being designed for a speed of 110 km/hr on a horizontal curve with a super elevation of 8%. If the coefficient of side friction is 0.10, the minimum radius of the curve (...

The value of lateral friction or side friction used in the design of horizontal curve as per India Roads Congress guidelines is

While designing a hill road with a ruling gradient of 6%, if a sharp horizontal curve of 50m radius is encountered, the compensated gradient at the curve as per the Indian Roads Co...

Pradhan Mantri Gram Sadak Yojana (PMGSY), launched in the year 2000 aims to provide rural connectivity with all weather roads. It is proposed to connect the habitations and plain a...

The star and grid pattern of road networks are adopted in

SSD and Friction coefficients are

The design value of lateral friction coefficient on highway is

Width of carriage way for a single lane is recommended to be

The ruling minimum radius of horizontal curve of a national highway in plain terrain for a ruling design speed of 100 km/hour with e = 0.07 and f = 0.15 is close to

Design rate of super elevation for horizontal highway curve of radius 450 m for a mixed traffic condition, having a speed of 125 km/hour is

The total length (in km) of the existing National Highways in India is in the range of

The reaction time for calculating stopping sight distance may be assumed as

For a highway with a design speed of 100kmph, the safe OSD is assume acceleration as 0.53 $$m/sec^2$$. the road is two lane with two way traffic. User other specifications as per I...

The value of camber recommended for CC roads in area of heavy rainfall is

Nagpur road plan is based on

If the design speed is 80kmph, perception reaction time is 3sec and coefficient of friction is 0.5, then the SSD is ________.

The convexity provided to the carriage way between the crown and edge of pavement is known as

A vehicle traveling on dry, level pavement at 80kmph had the brakes applied. The vehicle traveling 76.5 m before stopping. what is the coefficient of friction that has developed?

Superior the road

The distance traveled by a moving vehicle during perception time and break reaction time is known as