For historical reasons, wireless systems for use in the transportation sector have taken a separate path for technology development. This divergence no longer makes sense. Every other sector in the economy is finding secure, reliable, and economical systems that use internet-protocol and are highly compatible. Continued insistence on separate radio frequencies, closed networks, and obscure proprietary standards mean that technology investments in transportation don’t take advantage of low-cost high-volume components developed for the consumer market or advances in communications hardware and routing software. Congestion charging cameras in London. Photo by jeroen020 on flickr.

Rest-of-the-World Trends: Open networks, Device Convergence, Open Standards, Extensible/Interoperable, Consumer products/parts (high volume, low cost), Redundant networks base, Robustness/Redundancy

Versus

Intelligent Transportation Systems: Closed network, DSRC (Dedicated Short Range Communications), Single-purpose devices, Proprietary, inflexible, Proprietary lock-in, high cost, path dependency, Can’t leverage others’ investment, Centralized command & control (single points of failure)

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