Which step in the four-step method is primarily concerned with mode shares?

Which step in the four-step method is primarily concerned with mode shares?

• A. Trip Generation
• B. Trip Distribution
• C. Mode Choice
• D. Trip Assignment

Answer: (C)

The step that decides how trips are divided among travel modes is the mode choice step. This part of the four-step model assigns each trip to a mode—car, transit, bike, walk, etc.—based on factors like travel time, cost, reliability, convenience, and traveler preferences. The outcome of this step is the mode shares, or the proportion of trips made by each mode, which then feed into the next step, trip assignment, where those trips are routed on the network. In contrast, trip generation estimates how many trips originate or are attracted, and trip distribution figures out where those trips go. So mode choice is the step specifically focused on allocating trips across different modes, producing the mode shares.

The step that decides how trips are divided among travel modes is the mode choice step. This part of the four-step model assigns each trip to a mode—car, transit, bike, walk, etc.—based on factors like travel time, cost, reliability, convenience, and traveler preferences. The outcome of this step is the mode shares, or the proportion of trips made by each mode, which then feed into the next step, trip assignment, where those trips are routed on the network. In contrast, trip generation estimates how many trips originate or are attracted, and trip distribution figures out where those trips go. So mode choice is the step specifically focused on allocating trips across different modes, producing the mode shares.