Traffic Forecasting

travel demand model
Public Transit, Traffic Engineering, Transportation Planning

How to Build a Transportation (Travel Demand) Model: A Practitioner’s Guide

A transportation (travel demand) model is a quantitative framework that forecasts how people and goods move through a region under different land-use and network scenarios. Done well, a model becomes a decision engine: it helps test road and transit projects, pricing policies, and growth plans before spending real money. This guide covers when you actually […]

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pass by trips
Traffic Engineering, Transportation Planning

Pass-By Trips: What They Are, How to Calculate Them, and How Not to Get Burned

If you already work with trip generation, you know the headline challenge in many Traffic Impact Studies (TIS/TIA): not all site trips are “new” to the network. Some are simply siphoned from vehicles already passing by. Getting this right can change turn lane warrants, signal timing, and mitigation costs. This guide is a practitioner’s deep-dive

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