Preparatory Work

This report develops typical ‘urban emissions drive cycles’ (UEDCs) for diesel vehicles in Australian cities, and derive ‘composite urban emission drive cycles’ (CUEDCs) suitable for testing vehicles in order to establish fleet in-service emission performance for inventory purposes.  This information was used in the development of the Diesel NEPM.

Proposed Diesel Vehicle Emissions

National Environment Protection Measure - Preparatory Work

In-Service Emissions Performance

Phase 1 Urban Drive Cycle Development

Attachment 1

CSIRO Mathematical and Information Sciences (CMIS) - The Identification of Typical Drive Cycles for Diesel Vehicles

Appendix A - Summary of Vehicle Information

Appendix B - Illustration of Classification Rule for Microtrips

Detailed data used for the development of drive cycles.

Detailed data used for the development of drive cycles.

Detailed data used for the development of drive cycles.

This Project was undertaken to objectively evaluate and report on:
• Pollutant emission levels and trends from diesel vehicles in respect to their age, operating mass and kilometers travelled during their operational life, for a range of typical urban traffic conditions; and
• The feasibility and practicality of introducing a low-cost, short test suitable for use in a program to identify and rectify high-polluting, in-service diesel vehicles.

Detailed data for report on vehicle testing.

The aim of this project was to:

• measure the emission performance of a sample of diesel powered vehicles when tested on benchmark emission tests and three transient load tests, and;
• establish correlations between the results of the benchmark tests and the transient load tests.

The objectives of the project were to, by means of a pilot vehicle emissions testing program to:
1. determine the emissions performance of the Australian diesel fleet as measured by the DT80 in-service emissions test.
2. identify the type and cost of repairs that result in improved emissions performance;
3. provide data to enable the assessment of the effectiveness, practicality and costs of using the DT80 test for measuring emissions from in-service diesel vehicles, and;
4. develop a package of procedures and equipment specifications for the DT80 test that could be used as the basis of an in-service emissions testing program.