Overview
On April 28, 2015, the Committee for the Review of the U.S. Department of Transportation (USDOT) Report on Connected Vehicle Initiative Communications Systems Deployment sent a letter to Anthony R. Foxx, Secretary of the USDOT. The committee, as directed by Congress, conducted an independent peer review of a draft USDOT report to Congress, Status of the Dedicated Short-Range Communications Technology and Applications.
The committee agrees with the USDOT’s draft report about the benefits that digital short-range communication (DSRC) technology offers compared with other communications technologies for safety-critical messages. It also agrees that proposed spectrum sharing in the 5.9 GHz band is the most serious risk and uncertainty of relying on DSRC for safety-critical messages. The committee, however, identifies other unknowns and uncertainties that the report should address, including spectrum frequency coordination, scalability of DSRC communications levels beyond those tested to date, message security, and other issues.