Task Order 4 of the
Commercial Vehicle Safety Technology Diagnostics
and Performance Enhancement Program January 2007 This project is one of several performed under the provisions of Section 5117 of the Transportation Equity Act of the 21st Century (TEA-21). The primary objective of this project was to explore the capacity of the Society of Automotive Engineers (SAE) J1939 network. The SAE J1939 is a worldwide serial data bus communication standard for truck, bus, off-road, construction, and marine vehicle applications. The J1939 communication standard is a control and information data bus that supports critical safety-related systems and subsystems on heavy-duty tractors, trucks, converter dollies, and trailers. The results of this project can be used by commercial motor vehicle original equipment manufacturer (OEM), component suppliers, and motor carriers to help evaluate the ability of the J1939 network to accommodate an increasing number of safety-related systems and accessory components. Read the Final Report (Microsoft Word .doc) of the contract Task Order under which the study was
performed. The accompanying Data Tables (Microsoft Excel spreadsheet) are also available.
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