Motor Vehicle Dimensions

Standard:
Revised:
  • 2009-11-20
 
  • CURRENT
Publisher:
  • SAE International
Pages:
127
Scope:

This SAE Recommended Practice defines a set of measurements and standard procedures for motor vehicle dimensions. The dimensions are primarily intended to measure the design intent of a vehicle within a design environment (i.e., CAD). All dimensions in this practice can be measured this way. In addition, some dimensions can be taken in an actual vehicle. If measurements are taken on physical properties, some differences in values should be expected. Also, care should be taken to not confuse design intent measurements with those taken on a physical property. It is intended that the dimensions and procedures described in this practice be generic in their application to both the HPM, described in SAE J826, and the HPM-II, described in SAE J4002. In some circumstances, the figures may only reflect one or the other.

Unless otherwise specified, all dimensions are measured normal to the three-dimensional reference system (see SAE J182), except ground-related dimensions, which are defined normal to ground. All dimensions are taken with the vehicle at curb weight unless otherwise specified.

All dimensions are measured on the base vehicle and do not include Regular Production Options (RPO) or accessory parts, unless otherwise specified.

Although many terms and dimensions use human body parts in their name, they should not be construed as measures that indicate occupant accommodation, capabilities, or comfort.

Rationale:

The 2008 revision of J1100 represents a substantial overhaul of its contents. Specifically, dimension procedures and definitions have been:

  • harmonized with the Global Car manufacturer's Information Exchange (GCIE),
  • coordinated with revisions to other SAE human accommodation practices,
  • synchronized with related definitions published by the International Standards Organization (ISO), including the use of HPM-II,
  • formalized with certain regulatory procedures defined by the United States (U.S.). Environmental Protection Agency (EPA),
  • and made consistent with some definitions found in the U.S. Code of Federal Regulations by the National Highway Traffic Safety Administration (NHTSA).

  • History:
    Standard Published Revision Status
    J1100_200911 2009-11-20 Latest Revised
    2005-09-29 Historical Revised
    2002-07-11 Historical Revised
    2001-02-14 Historical Revised
    1997-04-01 Historical Revised
    1995-05-01 Historical Revised
    1993-06-01 Historical Revised
    1984-06-01 Historical Revised
    1973-09-01 Historical Revised
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