With reference to the Speed-Density diagram given below, which of the following statements is/are correct?
- Point P represents Maximum Flow
- Point P represents Jam Density
- Point Q represents Space Mean Speed for Free Flow condition
- Point Q represents Time Mean Speed
Top Questions on Road capacity and Travel demand forecasting
- A city with a present population of 1,75,000 is expecting an annual population growth rate of 0.85%. In a traffic assessment study, the trip generation model has been developed as Y = 142 +0.675X, where Y is the number of daily trips generated within the city and X is the population of the city. The number of daily trips to be generated within the city after 10 years is _______(in integer).
- GATE AR - 2024
- Infrastructure Planning
- Road capacity and Travel demand forecasting
- In a one-way single lane traffic stream, the observed average time headway is 2.5 seconds. The traffic flow of the above mentioned lane, in vehicle/hr, is _______ (in integer).
- GATE AR - 2024
- Infrastructure Planning
- Road capacity and Travel demand forecasting
- A given zone is characterized in the following tables in terms of household size, and vehicle ownership. Table I shows the trip rates of households, and Table II shows the household composition. For households of size two and above, having one or more vehicles, the total daily home-based trips made are \underline{\hspace{1cm}} [in integer].
- GATE AR - 2023
- Infrastructure Planning
- Road capacity and Travel demand forecasting
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Questions Asked in GATE AR exam
A four-arm uncontrolled un-signaled urban intersection of both-way traffic is illustrated in the figure. Vehicles approaching the intersection from the directions A, B, C, and D can move to either left, right, or continue in straight direction. No U-turn is allowed. In the given situation, the maximum number of vehicular crossing conflict points for this intersection is _________ (answer in integer)
- GATE AR - 2025
- Traffic survey methods, Traffic flow Analysis
An individual chooses a transport mode for a particular trip based on three attributes i.e., cost of journey (X), In-vehicle travel time to reach destination (Y), and Out-of-vehicle time taken to access mode at respective stops (Z). The values for these attributes for three modes Rail, Bus and Para-transit are given in the table. If the general utility (U) equation is \( U = - 0.5 \times X - 0.3 \times Y - 0.4 \times Z \), using the Logit model, the estimated probability of choosing Bus is _________ (rounded off to two decimal places).
- GATE AR - 2025
- Transportation