How do they do that? is a series for The Source that explores the technology that helps keep Metro running and passengers and other commuters moving. Some of it applies directly to the trains, buses and freeways and some of it runs in the background — invisible to nearly everyone but essential to mobility in our region.
How do they do that? Make roads smarter
In their future form, smart roads could be the automated highways of tomorrow — the roadways we cruise, possibly in self-driving cars, hooked to a group of other cars headed in the same direction. By traveling together cars can move faster and distances between them can be decreased, since the group accelerates and brakes simultaneously. This maximizes road capacity while it minimizes the chance of accidents, which slow down traffic.
Obviously we’re not there yet. But there are a variety of smart road technologies being used in Los Angeles County and Metro is participating — primarily by helping to fund them — in programs to squeeze more capacity out of streets and freeways. They may not be smart roads of the future, but they are promising advances.
Here’s a quick overview of what’s going on:
•Caltrans and Metro are in talks to mirror a program already running in Orange County on the northbound I-5 freeway. By offering real-time travel comparisons between the freeway and Metrolink, electronic message signs let commuters know when it would be faster to take Metrolink than to stay on the freeway. Comparative travel times would work the same way in L.A. County comparing, say, commute times on the 210 Freeway with the Gold Line speed to Pasadena. The intent is to encourage drivers to consider transit as an option.