Commercial traffic reports have decades of experience effectively providing regional traffic information in urban areas throughout the country. VDOT does not have the resources to provide this level of information, and should not attempt to compete in this market. Static HAR advisory signs offer a single, inflexible attention statement to drivers. Flashing beacon signs face the same problem, and are confusing to some motorists. CMSs can alleviate these problems, directing the message to the appropriate audience.
Vertical antennae are more cost-effective than radiating cable systems.
Leaky cables are expensive to install and maintain, have limited lifetime, and broadcast over a very limited area.