GTR for motorcycle braking Preliminary report from the

GTR for motorcycle braking Preliminary report from the Informal group 56/GRRF, 2004/09/21

Motorcycle GTR: background (1) • 1998 Global Agreement – IMMA priorities • 46/GRRF (Sept 1999): project introduced • 51/GRRF: IMMA presented severity comparison + outline of GTR • September 2002: Canada becomes the GTR sponsor • June 2003: Informal group set up

Motorcycle GTR: background (2) • Group Members: Canada, USA, Italy, Japan, India, IMMA and FEMA • July 2003: 1 st Informal group meeting • April 2004: 2 nd Informal group meeting • Sept 2004: Preliminary report to GRRF • November 2004: Preliminary report to AC 3

Regulations considered • • ECE R 78 USA FMVSS 122 Japan’s JSS 12 -61 General agreement between IMMA and USA/Canada severity assessments • 2 nd Informal group (April 2004) meeting able to agree the technical basis for the GTR and to appoint a drafting group

The technical basis: general • Based on: § the results of the severity comparison § experience with repeatablity/practicality § a combination of concepts in: § ECE R 78 § FMVSS 122 § JSS 12 -61

The technical basis: tests • Dry stop test: – Laden: single brake tests following R 78 – Unladen: both brakes together, 100 km/h, following FMVSS • High speed test: from 160 km/h, to meet 5, 8 m/s 2 following JSS and FMVSS • Heat fade test: following R 78 • Wet test: following R 78

Next steps • 17 h 45 tonight: GTR text group meets • 2004/11/08 -10: 3 rd Informal group meeting in Montreal, to: – Review phase 2 of the USA/Canadian testing – Discuss progress with the GTR text – Discuss the basis for the cost/effectiveness analysis

Future schedule • 57/GRRF: presentation of the detailed table of technical proposals: discussion/agreement (working version already on the UN website) • 58/GRRF: if there is agreement at 57/GRRF, presentation of the draft GTR text • Cost/effectiveness study by 2005/12/31 • After approval of the GTR text by GRRF: preparation of the official technical report and final GTR text for AC 3 and presentation in 2006