Question

Considering the following statements (P, Q, and R), select the correct option. (P) Prediction of travel demand depends on target year modal alternatives.
(Q) Prediction of travel demand depends on target year population.
(R) Prediction of travel demand depends on target year land use.

• A. Only P is correct
• B. Only P \& R are correct
• C. Only Q \& R are correct
• D. P, Q, and R are all correct

Hint:

Travel demand depends on the three pillars of planning: Population, Land use, and Transport modal alternatives. Always check all three while forecasting.

Answer 1

The Correct Option is D

Step 1: Role of modal alternatives.
Travel demand forecasting considers different transport modes (e.g., cars, buses, metro, non-motorized modes). If the target year includes introduction of new modes or improved public transport, travel demand distribution changes. \[ \Rightarrow \text{Hence, statement (P) is correct.} \]

Step 2: Role of population.
The most direct factor influencing travel demand is the projected target year population. More population means more trips and more travel demand. \[ \Rightarrow \text{Hence, statement (Q) is correct.} \]

Step 3: Role of land use.
Land use (residential, commercial, industrial distribution) strongly affects trip generation and attraction. For example, more office zones → more work trips. \[ \Rightarrow \text{Hence, statement (R) is correct.} \] Thus, all three factors P, Q, and R affect prediction of travel demand. \[ \boxed{\text{P, Q, and R are all correct}} \]