Chapter 13 - Traffic Forecasting and Analysis Concepts

13.1. Traffic Forecasting Process

13.1.1. Data Collection

This section covers several aspects of data collection , listed below.  Click on a title listed below to "jump" to that subsection, or click on Next> to view each subsection.

Site Visit

Existing Traffic Data

Establishing Existing Traffic Patterns

Daily Volumes and Their Uses

Base Year and Design Year Traffic

Urban Area Transportation Model

Recommended Model Networks

Traffic Projectsions from the Urban Area Transportation Models

Establish Traffic Growth Rate Trends

Traffic Projections for New Roadway Corridors

Preliminary Traffic Projections

Adjustments to Design Year ADT Volumes

Detailed Traffic Forecast

Design Hourly Volumes

Determine Truck Factors

Finalize Traffic Forecast

Traffic Analysis and Design