Project: TRAMAQ - Vehicle Operating Profiles

Reference: UG214

Last update: 29/08/2007 11:47:16


The objective of the project is to assemble a database of vehicle operation profiles, for Heavy Goods Vehicles (HGVs), buses, cars and light vans over various traffic management schemes (bus lanes, road humps, etc). The data will be used to produce realistic driving cycles over seven different types of traffic management schemes.


This project intends to determine emission factors for vehicles, as it is necessary to have information on the drive cycle over which the vehicles operate. Many emission studies attempt to define typical engine operating conditions in order to provide emission values that are also typical. However, one of the primary objectives of traffic management systems is to alter the behaviour of traffic so that emissions become no longer typical. The project is examining traffic management systems that give rise to non-standard driving patterns for a range of vehicle types. Speeds, gear selection and the effects of gradient are being studied. The results will be disseminated by reports, technical papers, and Traffic Advisory Leaflets, and will be used in UG216 Emission Measurements.


TRL Limited
Crowthorne House, Nine Mile Ride, Wokingham, Berkshire, RG40 3GA
+44 (0)1344 773131

Contract details

Cost to the Department: £288,805.00

Actual start date: 30 November 1998

Actual completion date: 28 February 2004


TRL Report PR/SE/515/99 Draft Project Programme: TRAMAQ Vehicle Operating Profiles 1999
Author: T J Barlow, P Boulter, A J Hickman, R Layfield and J Cloke
Source: Limited Availability from DfT: Contact

 The drive cycles generated from this project will be available on the TRL website by April 2003
Author: TRL

Traffic Management and Air Quality - UG214 Realistic driving cycles for traffic management schemes
Author: J Green and T Barlow
April 03
Source: TRL

Summary of results

  1. Realistic traffic management drive cycles have been created for HGVs, buses, cars and light vans.