Recent questions in Highway Pavements

An incident occurred on one side of a median on a four-lane dual carriageway road section. This incident disrupted the traffic movement in one direction. Traffic police d...

A downgrade of $1$ in $100$ meets an upgrade of $1$ in $125$ on a road. If the rate of change of grade is $0.10 \%$ per $30$ m, the length (in m ) of the vertical curve b...

Consider the following statements with respect to rigid pavements:Statement-$1$: Bottom-up cracking (BUC) in rigid pavements is caused at the edge of the slab due to comb...

Which of the following statements is/are TRUE with respect to the type of stresses to be considered for the design of rigid pavements?Warping stress due to temperature di...

A vertical curve is formed by a descending gradient of $1$ in $40$ meeting an ascending gradient of $1$ in $50$. Consider the following:Stopping Sight Distance $(\mathrm{...

Which of the following statements is/are TRUE in the context of the geometric design of highways?The coefficient of friction used for the design of horizontal curves is l...

In a bituminous mix, the percentage by weight of coarse aggregate, fine aggregate, filler, and bituminous binder is $58,25,12$, and $5$, respectively. The corresponding s...

The free flow speed of a highway is $100 \mathrm{~km} / \mathrm{h}$ and its capacity is $4000 \text{ vehicle}/ \mathrm{h}$. Assume speed density relation is linear.For a ...

Various stresses in jointed plain concrete pavement with slab size of $3.5 \mathrm{~m} \times 4.5 \mathrm{~m}$ are denoted as follows:Wheel load stress at interior $=S_{w...

Which of the following is equal to the stopping sight distance?(braking distance required to come to stop) $+$ (distance travelled during the perception-reaction time) (b...

As per the Indian Roads Congress guidelines $\text{(IRC 86: 2018),}$ extra widening depends on which of the following parameters? Horizontal curve radius Superelevation N...

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

$G_1$ and $G_2$ are the slopes of the approach and departure grades of a vertical curve, respectively.Given $\left|G_1\right|<\left|G_2\right|$ and $\left|G_1\right| \neq...

Which of the following options match the test reporting conventions with the given material tests in the table?$$\begin{array}{|l|l|}\hline \textbf{Test reporting convent...

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?Decrease the design...

The softening point of bitumen has the same unit as that ofdistancetemperaturetimeviscosity

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

The flow-density relationship of traffic on a highway is shown in the figureThe correct representation of speed-density relationship of the traffic on this highway is

An isolated concrete pavement slab of length $L$ is resting on a frictionless base. The temperature of the top and bottom fibre of the slab are $T_t$ and $T_b$, respectiv...

A box measuring $50 \: cm \times 50 \: cm \times 50 \: cm$ is filled to the top with dry coarse aggregate of mass $187.5 \: kg$. The water absorption and specific gravity...

Structural failures considered in the mechanistic method of bituminous pavement design areFatigue and RuttingFatigue and ShearRutting and ShearShear and Slippage

A flexible pavement has the following class of loads during a particular hour of the day.$80$ buses with $2$- axles ( each axle load of $40 \: kN$)$160$ trucks with $2$-a...

In the context of the $IRC \: 58-2011$ guidelines for rigid pavement design, consider the following pair of statements.Radius of relative stiffness is directly related to...

The following observations are made while testing aggregate for its suitability in pavement construction:Mass of oven-dry aggregate in air $=1000 $ g Mass of saturated su...

The penetration value of a bitumen sample tested at $25^{\circ}C$ is $80$. When this sample is heated to $60^{\circ}C$ and tested again, the needle of the penetration tes...

On a section of a highway the speed-density relationship is linear an is given by $v=\big[80 – \dfrac{2}{3}k\big]$; where $v$ is in km/h and $k$ is in veh/km. The capacit...