L04 Trajectory Processor User’s Guide

Overview

The Trajectory Processor is an essential part of the analytical framework developed under the SHRP2 L04 project to produce travel time reliability performance measures from planning and simulation model outputs. It calculates and visualizes travel time distributions and ssociated reliability indicators (such as 95th Percentile Travel Time, Buffer Time Index, Planning Time Index, etc.) at link, path, OD and network levels. These distributions and associated indicators are derived from individual vehicle trajectories, defined as sequence of geographic positions (nodes) and associated passage times. These trajectories are obtained as output from particle-based microscopic or mesoscopic simulation tools. Such trajectories may alternatively be obtained directly through measurement (e.g. GPS-equipped probe vehicles), thereby enabling validation of simulation tools.

Operations Area of Practice

    Performance Management
    SHRP2 Tools
    Simulation Analysis
    Travel Demand Forecasting

Content Type

Software Tool

Role in Organization

Transportation Planner
Public
Senior Engineer
Researcher/Academic
Principal Engineer
Manager / First Line Supervisor
Director / Program Manager
Technician
CEO / GM / Commissioner
Engineer
Operator
Senior Manager
Transit Professional
Associate Engineer

Publishing Organization

SHRP2 Program

Document Downloads

TOM Chapters
6.5
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