Source:
Lygeros, John; Godbole, Datta N.; & Broucke, Mireille E.(1995). Design Of An Extended Architecture For Degraded Modes Of Operation Of AHS. California Partners for Advanced Transit and Highways (PATH).
Source:
Linnartz, Jean-paul M. G.(1994). Single-channel IVHS Communication Architecture. California Partners for Advanced Transit and Highways (PATH). UC Berkeley: California Partners for Advanced Transit and