เสียงที่ใช้ร่วมกัน

“Let’s start by revisiting the Four-Stage Model. The Four-Stage Model is a systematic approach used in transportation planning to estimate travel demand. It helps engineers and planners predict how people move within a city or a region. The model consists of four main stages. The first stage is Trip Generation, where we estimate how many trips are produced and attracted by each zone. The second stage is Trip Distribution, where we determine where these trips are going. The third stage is Mode Ch