This document specifies the main parameter requirements of laden mass for bus, as well as the calculating methods for largest number of personnel quota for design, the laden luggage mass for bus and the maximum laden mass for bus design.
This document is applicable to calculating the laden mass for vehicles in Categories M2 and M3 and may serve as a reference for other vehicles.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3730.1 Terms and definitions of motor vehicles, trailers and combination vehicle
GB/T 3730.2 Road vehicle - Masses - Vocabulary and codes
GB 13094 The safety requirements for bus construction
GB/T 15089 Classification of power-driven vehicles and trailers
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 3730.1, GB/T 3730.2 and GB/T 15089 and the following apply.
3.1
passenger and crew
general term for passengers and crew on a bus
3.2
crew
staff on bus
Note: Including driver, conductor, etc.
3.3
passenger compartment
space on a bus for passengers only
Note: It does not include the space occupied by any fixed appliances except passenger seats (e.g., barriers, coin boxes, water dispensers, freezers, kitchens, bars, toilets, driving areas, conductor working areas and stairs of Class A, Class I and Class II buses, etc.).
3.4
surface area available for passenger compartment
surface area available for seated and standing passengers when the bus is running
4 Method for calculating surface area available
4.1 Calculation of surface area available for passenger
The surface area available for passenger shall be calculated by subtracting the following items from the total horizontal projection area of the bus (to avoid repeated calculation).
a) Driving area: the horizontal projection area of the space used by the driver alone, including the horizontal projection area of the space occupied by the driver's seat, steering wheel, driving control, instruments and other equipment necessary for driving the vehicle, and the activity space necessary for the driver to complete the driving work outside the above area.
Note: For buses equipped with driving area isolation devices, the driving area refers to the area occupied by driving area isolation devices and internal area.
Contents Foreword 1 Scope 2 Normative references 3 Terms and definitions 4 Method for calculating surface area available 5 Main parameter requirements 6 Largest number of personnel quota for design 7 Laden luggage mass for bus 8 Maximum total laden mass for bus design Bibliography
Laden mass calculating method for bus
1 Scope
This document specifies the main parameter requirements of laden mass for bus, as well as the calculating methods for largest number of personnel quota for design, the laden luggage mass for bus and the maximum laden mass for bus design.
This document is applicable to calculating the laden mass for vehicles in Categories M2 and M3 and may serve as a reference for other vehicles.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3730.1 Terms and definitions of motor vehicles, trailers and combination vehicle
GB/T 3730.2 Road vehicle - Masses - Vocabulary and codes
GB 13094 The safety requirements for bus construction
GB/T 15089 Classification of power-driven vehicles and trailers
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 3730.1, GB/T 3730.2 and GB/T 15089 and the following apply.
3.1
passenger and crew
general term for passengers and crew on a bus
3.2
crew
staff on bus
Note: Including driver, conductor, etc.
3.3
passenger compartment
space on a bus for passengers only
Note: It does not include the space occupied by any fixed appliances except passenger seats (e.g., barriers, coin boxes, water dispensers, freezers, kitchens, bars, toilets, driving areas, conductor working areas and stairs of Class A, Class I and Class II buses, etc.).
3.4
surface area available for passenger compartment
surface area available for seated and standing passengers when the bus is running
4 Method for calculating surface area available
4.1 Calculation of surface area available for passenger
The surface area available for passenger shall be calculated by subtracting the following items from the total horizontal projection area of the bus (to avoid repeated calculation).
a) Driving area: the horizontal projection area of the space used by the driver alone, including the horizontal projection area of the space occupied by the driver's seat, steering wheel, driving control, instruments and other equipment necessary for driving the vehicle, and the activity space necessary for the driver to complete the driving work outside the above area.
Note: For buses equipped with driving area isolation devices, the driving area refers to the area occupied by driving area isolation devices and internal area.
Contents of GB/T 12428-2023
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Method for calculating surface area available
5 Main parameter requirements
6 Largest number of personnel quota for design
7 Laden luggage mass for bus
8 Maximum total laden mass for bus design
Bibliography
