New Bus for London - vehicle weight

Meeting: 
MQT on 2015-02-23
Session date: 
February 23, 2015
Reference: 
2015/0544
Question By: 
Stephen Knight
Organisation: 
Liberal Democrats
Asked Of: 
The Mayor
Category: 

Question

Has the increasing weight of the new Routemaster buses entering service affected the number of passengers they can carry? Please also outline the effect on tyre and brake wear?

Answer

Answer for New Bus for London - vehicle weight

Answer for New Bus for London - vehicle weight

Answered By: 
The Mayor

Euro VI engines combined with exhaust-after-treatment systems are heavier than the Euro V counterparts they superseded. The Euro VI engines in the New Routemaster is also used on many other vehicles in London and on the margin impacts on the number of standing passengers allowed due to the maximum gross vehicle weight permitted.

A programme of weight-saving measures, however, continues to make the superstructure and some components of the New Routemaster lighter.

TfL anticipates that manufacturer Wrightbus will rise to this challenge through further innovation in composite materials and general design precise. As the introduction of Euro VI engines is very recent, it is too early to understand the implications for tyre and brake wear.