Paid-for absence: Hugh Colton, Georgia DOT details move to improve urban traffic control in the Atlanta area

摘要

With a significant proportion of traffic using freeways and toll-ways, along with a significant investment in roadway infrastructure, urban arterials are often the poor relation when it comes to ITS investment, Hitherto the primary means of Urban Traffic Control (UTC) has been the ubiquitous traffic signal. Many traffic signals still operate in a standalone mode and traffic detection is often broken, leaving the signal to rely upon a built-in time-of-day schedule. This schedule in turn relies upon a clock, and should that clock significantly slow down or speed up all semblance of intelligent operation is lost.