GATE Traffic Engineering and Transportation Planning: Fundamental relationships of traffic flow – Previous Year Questions

7 GATE previous year questions on Fundamental relationships of traffic flow (Traffic Engineering and Transportation Planning, Civil Engineering) with answers and explanations, from every paper.

GATE 2023 CE (CE1) Q46 (2 marks, Multiple choice) – A plot of speed-density relationship (linear) of two roads (Road A and Road B) is shown in the figure. [Figure: speed against density. Road A is a…
GATE 2024 CE (CE1) Q44 (2 marks, Multiple choice) – 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…
GATE 2024 CE (CE1) Q63 (2 marks, Numerical answer) – The figure presents the trajectories of six vehicles within a time-space domain. The number in the parentheses represents unique identification of…
GATE 2025 CE (CE2) Q50 (2 marks, Multiple select) – 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…
GATE 2025 CE (CE1) Q40 (2 marks, Multiple choice) – The speed-density relation on a one-way, single lane road is shown in the figure, where speed u is in km/hour and density k is in vehicles/km. The…
GATE 2026 CE (CE2) Q60 (2 marks, Numerical answer) – For a given traffic stream, the speed-density relationship is given as: v = v o (k jk) where v is the mean speed (in km/h), and k is the density (in…
GATE 2026 CE (CE1) Q42 (2 marks, Multiple choice) – A road is divided into four sections having varying widths as shown in the figure. Section-2 (S2) represents a capacity constrained condition with…