Who conducts trip generation, Trip distribution and modal split? Is it transport company or transport planners?,?

Trip generation, trip distribution, and modal split are typically conducted by transport planners. These activities involve analyzing travel patterns, estimating the number of trips generated by different land uses, distributing these trips to different destinations, and determining the mode of transportation used for each trip. Transport companies may provide data and input to the transport planners, but the actual analysis and decision-making process is usually carried out by the planners.