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Minibus and Coach Seat Belts -
Advice on Retro-Fitting Seat Belts to Minibuses and Coaches
(VSE2/96)

Abstract

Webmaster Note: This page was dowloaded in its entirety to the STN Seatbelt Website from the home page of the Department of the Environment, Transport and the Regions - Vehicle Standards and Engineering. Copies of the documents can be obtained, subject to the appropriate fee, from HMSO, Publications Centre, PO Box 276, London, SW8 5DT. Or mail to: Department of the Environment, Transport and the Regions
VSE6, 2/06 Great Minster House, 76 Marsham Street, London SW1P 4DR, Tel:- 0171 873 0011 Fax:- 0171-271 4624

Contents

1. Introduction.
2. General.
3. Vehicle classification.
3.1 UK vehicle classification.
3.2 European vehicle categories.
4. Vehicle construction.
4.1 Minibus construction.
4.2 Coach construction.
4.3 Minibus and coach floor construction.
5. Seat belts.
5.1 Type of seat belt.
5.2 Seat belt approval markings.
5.3 Positioning of a seat belt.
6. Seat belt anchorages.
6.1 General.
6.2 Testing of seat belt anchorages.
6.3 Reinforcing plate.
7. Seating.
7.1 Seats with integral seat belts.
7.2 Seat tracking.
8. Increase in vehicle weight.
9. Confirmation that the standards are met.
10. Notification.
11. Details of relevant legislation and standards.
Annex 1. Seat belt anchorage requirements.
Annex 2. Example of a European Approval Label for seat belts.

1. Introduction.
As a result of legislation requiring seat belts for children travelling in minibuses and coaches, a large number of vehicles will be retro-fitted with seat belts. The purpose of this document is to provide technical information and advice on how to install seat belts correctly. This advice is based on the technical requirements of the British and European seat belt and anchorage standards, and good engineering practice. It is not intended to be a legal document or replace the existing technical standards and should be read in conjunction with advice from the Department of Transport, entitled: Minibus and Coach Seat Belts, Advice to Users and Operators of Minibuses and Coaches Carrying Children, VSE 1/96. Full details of the relevant legislation are shown in Section 11 of this document.

2. General.
There is a wide range of different minibuses and coaches currently in use. The ease with which seat belts can be installed will largely depend on the age and construction of the vehicle. It is not possible to discuss each type of vehicle in detail. However, there are design features that are common to both minibuses and coaches, and suitable technical standards for seat belts and their anchorages. These are explained in this document.

With older vehicles, especially those manufactured before 1988, it is unlikely that they would have been originally designed with any seat belts. Whilst this does not necessarily mean that seat belts cannot be retro-fitted to these vehicles, it is likely to be more difficult than fitting seat belts to a newer vehicle.

In some cases it may not be technically possible or economically viable to convert a vehicle. In such cases a newer vehicle that either has seat belts already fitted or can be more easily converted may be the only viable option. However, as long as it is technically feasible, age is no barrier to having a vehicle converted.

The level of expertise needed to carry out a conversion will largely depend on the nature of the conversion. Where this involves fitting seat belts to existing anchorages, this will be less than that needed to design and fabricate new seat belt anchorages. However, in either case it is essential to ensure that any work is carried out to a satisfactory standard. The seat belt installer should be prepared to confirm in writing that the restraint system is designed and installed to meet the appropriate European standards, i.e. approved belts are fitted, the belts are installed correctly and the anchorages are of an appropriate strength.

No matter how simple or complicated the conversion, the objective is the same; to provide seat belts that will, in the event of an accident, reduce the severity of an occupant's injuries. To achieve this objective, three main areas need to be considered in detail:

  • the type and standard of seat belt to be fitted;
  • correct positioning of the belt; and
  • the strength of the seat belt anchorage.

Whilst these areas are discussed in greater detail later in the document, if a seat belt approved to the British or European Standards is installed and the anchorages meet the European standard, the installer can be confident that the restraint system will provide a high level of occupant protection in the event of an accident.

3. Vehicle Classification.
Both the legislation and technical standards refer to different classifications and categories of vehicle. They are explained here for ease of reference.

3.1 UK Vehicle Classification.
A minibus is a motor vehicle constructed or adapted to carry more than 8, but not more than 16 seated passengers in addition to the driver. (This definition includes less obvious vehicles such as Land Rovers and other similar vehicles that have more than 8, but not more than 16 seated passengers.)

A coach is defined as a type of large bus (i.e. a vehicle constructed or adapted to carry more than 16 seated passengers in addition to the driver) which has a gross weight of more than 7.5 tonnes and a maximum speed exceeding 60mph.

A large bus which does not meet the weight or speed criteria of a coach is referred to as a bus in this document. This legislation does not apply to this type of vehicle.

3.2 European Vehicle Categories.
An M1 category vehicle is used for the carriage of passengers and has no more than 8 seats in addition to the driver's seat.

An M2 category vehicle is used for the carriage of passengers and has more than 8 seats in addition to the driver's seat and a maximum weight not exceeding 5 tonnes.

An M3 category vehicle is used for the carriage of passengers and has more than 8 seats in addition to the driver's seat and a maximum weight exceeding 5 tonnes.

4. Vehicle Construction.

4.1 Minibus Construction.
A minibus is normally constructed by using one of the following methods:

  • A factory/line built minibus is constructed in a single process requirements for adult seat belts.
  • EC Directive 77/541/EEC (with amending Directives 82/319/EEC, 90/628/EEC and 96/36/EEC). Generally equivalent to Regulation 16, but also covers requirements for installation into the vehicle.
  • BS3254: 1960 (no longer issued for new approvals) or BS 3254: Part 1: 1988. The latter is usually only used for retro-fit seat belts.

Technical standards for child restraints are contained in:

  • UNECE Regulation 44, latest revision 03.
  • BS3254: 1960 (no longer issued for new approvals) or BS 3254: 1960 as amended by Amendment No. 16 published on 31 July 1986 under the number AMD 5210, BS 3254: Part 2: 1988 or BS3254: Part 2 1991, BS AU 202, BS AU 202a or BSAU202b.

Seat belt wearing requirements are contained in:

  • The Road Traffic Act 1988 (Amendment) Regulations 1992, S.I. No 3105;
  • The Motor Vehicles (Wearing of Seat Belts by Children in Front Seats) Regulations 1993, S.I. No. 31; and
  • The Motor Vehicles (Wearing of Seat Belts) Regulations 1993, S.I. No. 176.

Details of fuel duty grants are contained in:

  • The Fuel Duty Grant (Eligible Bus Services) Regulations 1985, S.I. No. 1886.

Copies of these documents can be obtained, subject to the appropriate fee, from HMSO, Publications Centre, PO Box 276, London, SW8 5DT. The telephone number for further information on these publications is 0171 873 0011.

Department of the Environment, Transport and the Regions
VSE6
2/06 Great Minster House
76 Marsham Street, London, SW1P 4DR
Fax: 0171-271 4624
E-mail:- Chris Howsham, rvs1.detr@gtnet.gov.uk

Last updated December 16, 1996



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