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Traffic monitoring for state highways

This manual describes the current methodology for traffic monitoring, the technology involved, conventions, survey guidelines, calculations and an overview of the software system.

Traffic monitoring for state highways

Contents

1. INTRODUCTION

2. BACKGROUND

3. OBJECTIVES

4. BASIC COMPONENTS OF THE METHODOLOGY

4.1 Node/Link Network
4.2 Traffic Sampling Strategy
4.2.1 Telemetry Monitoring System
4.2.2 Regional Traffic Monitoring Contracts
4.3 TMS (Traffic Monitoring System)

5. IDENTIFICATION OF COUNT STATIONS
5.1 Site Numbering

6. TRAFFIC MONITORING TECHNOLOGY
6.1 Data Communications
6.2 Data Logging Equipment
6.3 Vehicle sensors/detectors
6.3.1 Pneumatic Tube
6.3.2 Piezoelectric Cable
6.3.3 Inductive Loop
6.3.4 Bending Plate

7. MONITORING HIERARCHY AND CONVENTIONS
7.1 Vehicle Counts
7.2 Vehicle Classifications
7.3 Weigh In Motion

8. TYPICAL SURVEY SPECIFICATION
8.1 Site Selection Criteria
8.2 General Guidelines for Tube Surveys
8.3 Safety Issues

9. DATA CALCULATION
9.1 Data Accuracy
9.2 Calculated Values
9.2.1 Average Annual Daily Traffic (AADT)
9.2.2 Vehicle Kilometres Travelled (VKT)
9.2.3 Equivalent Standard Axles (ESA)

10. TRAFFIC MONITORING SYSTEM (TMS) OPERATION
10.1 Operational Data
10.2 Traffic Data
10.3 Reports
10.3.1 Recorded Data
10.3.2 Summarised Data
10.3.3 Site Details
10.3.4 Weigh-in-Motion
10.4 User Administration
10.5 Help

11. LINKS TO OTHER SYSTEMS

12. THE FUTURE

Appendix A Transit New Zealand’s vehicle classification scheme
Appendix B Telemetry Station Sites
Appendix C Weigh-in-motion
Appendix D Process flow chart
Appendix E Possible tube and loop layout configurations

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