Traffic flow is no accident in Cranberry
Coordinating traffic signals on Cranberry's busy roads in 2011 saved motorists about $2 million annually, according to a study by Carnegie Mellon University researchers.
“We can't keep adding pavement,” township Manager Jerry Andree said. “We have to move traffic efficiently.”
In 2010, the township opened a traffic operation center, where it monitors traffic flows and traffic signals. The next year, the township spent about $80,000 through a federal grant to coordinate and time signals so traffic could flow as smoothly as possible through major corridors along Routes 19 and 228 and Freedom Road.
Coordinating the signals helps drivers in the region save about $2 annually on fuel and wear and tear on their vehicles, CMU postdoctoral researchers Yeganeh Mashayekh and Chris Hendrickson found through the university's Traffic 21 research program. Cranberry drivers save about $600,000.
The township maintains 44 traffic signals, including 37 within the township limits, and a few in outlying communities, including Adams and Marshall.
“It is important to note that Cranberry Township maintains its traffic signal system regularly and updates its signal timing frequently to address demand and fluctuations,” the researchers said. The study notes that retiming the signals every year would cost the township about $160,000.
Andree said the township doesn't do all signals each year, but “we're always tinkering,” something the study said many communities don't do.
The study also recommends that the township look at adaptive signal timing technology, which adjusts signals in real time, as traffic patterns change. The cost, however, in Cranberry, could be $1.5 million.
Andree said the township is “overturning every stone we can” for grants to install the system.
“Traffic management can save so much money,” Andree said. “That's the best place to put money.”
The study is scheduled to be presented to the Transportation and Development Institute at the American Society of Civil Engineers' conference in November in Austin, Texas.
Bill Vidonic is a staff writer for Trib Total Media. He can be reached at 412-380-5621 or firstname.lastname@example.org.
Show commenting policy
TribLive commenting policy
You are solely responsible for your comments and by using TribLive.com you agree to our Terms of Service.
We moderate comments. Our goal is to provide substantive commentary for a general readership. By screening submissions, we provide a space where readers can share intelligent and informed commentary that enhances the quality of our news and information.
While most comments will be posted if they are on-topic and not abusive, moderating decisions are subjective. We will make them as carefully and consistently as we can. Because of the volume of reader comments, we cannot review individual moderation decisions with readers.
We value thoughtful comments representing a range of views that make their point quickly and politely. We make an effort to protect discussions from repeated comments either by the same reader or different readers.
We follow the same standards for taste as the daily newspaper. A few things we won't tolerate: personal attacks, obscenity, vulgarity, profanity (including expletives and letters followed by dashes), commercial promotion, impersonations, incoherence, proselytizing and SHOUTING. Don't include URLs to Web sites.
We do not edit comments. They are either approved or deleted. We reserve the right to edit a comment that is quoted or excerpted in an article. In this case, we may fix spelling and punctuation.
We welcome strong opinions and criticism of our work, but we don't want comments to become bogged down with discussions of our policies and we will moderate accordingly.
We appreciate it when readers and people quoted in articles or blog posts point out errors of fact or emphasis and will investigate all assertions. But these suggestions should be sent via e-mail. To avoid distracting other readers, we won't publish comments that suggest a correction. Instead, corrections will be made in a blog post or in an article.
- City of Butler to lift summer concert alcohol ban
- Hotel anchors Village of Cranberry Woods development plan
- With usage shrinking, Butler County senior centers ponder changes
- Special Butler school board meeting on consolidation requested
- Butler County Controller Holland might withhold housing authorities’ payments if chief’s paid leave not explained
- Butler County planning director seeks commissioner spot
- Mars board hopes to hire superintendent by May
- High-water threat feared in low-lying area
- Butler community college opens 4-year degree options