Ramp meters are timed lights along on-ramps that tell drivers to stop and alternate lanes as vehicles merge onto the freeway.
Now, Phoenix meters are getting enhanced computer programming to operate the timing of the meters’ lights based on traffic conditions. ADOT spokesman Doug Nintzel said the upgrade allows nearby meters to talk to each other.
“They’re speaking through computer data, but a ramp meter can now know what a neighboring meter’s area is experiencing with traffic a mile down the line," he said. "That ramp meter can then extend the time between cars entering the freeway, which helps with the overall traffic flow.”
ADOT plans to expand the use of adaptive ramp metering along additional sections of freeway across the state over time.
Extend the lifespan and durability of any concrete. PoreShield is a USDA BioPreferred product and is approved for residential, commercial, and industrial use. It works great above...
The concrete at the Indiana State Fairgrounds & Event Center is subject to several potential sources of damage including livestock biowaste, food/beverage waste, and freeze/thaw...
PoreShield is a cost-effective, nontoxic alternative to traditional concrete sealers. It works differently, absorbing deep into the concrete pores to block damage from salt ions...
