Transportation Engineering - Traffic Flow Characteristics

The travel times of three vehicles on a 2 km stretch of road are 4, 5, and 8 minutes. Assuming the speed of each vehicle to be constant in this stretch, the Space Mean Speed (in km/h) of the vehicles is ____________ (rou...

A road is divided into four sections having varying widths as shown in the figure. Section-2 (S2) represents a a capacity constrained condition with respect to the traffic flow passing through Section-1 (S1). Section-3 (...

For a given traffic stream, the speed-density relationship is given as: $v = v_o \ln \left(\frac{k_j}{k}\right)$ where $v$ is the mean speed (in km/h), and $k$ is the density (in veh/km). Considering $v_o$ as 45 km/h, an...

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 figure presents the trajectories of six vehicles within a time-space domain. The number in the parentheses represents unique identification of each vehicle. (Figure NOT to scale) The mean speed (in km/hr) of the vehi...

A plot of speed-density relationship (linear) of two roads (Road A and Road B) is shown in the figure. If the capacity of Road A is $C_A$ and the capacity of Road B is $C_B$, what is $\frac{C_A}{C_B}$?

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) between the vehicles is

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 | 11 20 – 30 | 12 30 – 40 | 1...

Traffic on a highway is moving at a rate of 360 vehicles per hour at a location. If the number of vehicles arriving on this highway follows Poisson distribution, the probability (round off to 2 decimal places) that the h...