November Big Picture


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November 2010
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Productive Traffic Count Season

TMACOG staff and seasonal interns have collected and posted traffic counts from the 2010 spring and summer traffic counting season. Counts are made in a regular pattern around the region, attempting to keep information as current as possible. Staff also responds to requests from communities needing counts at specific locations. The data that TMACOG and other agencies and governments collect is posted to a searchable database. Navigate from here.

TMACOG staff and interns coordinated more than 1,000 screenline and Highway Performance Monitoring System (HPMS) traffic count locations.  To date, TMACOG has obtained approximately 44 percent of the HPMS counts on the 2009-2014 schedule and approximately 86 percent of the screenline counts on the 2009-2011 schedule. HPMS is a system that includes data on the extent, condition, performance, use, and operating characteristics of the nation’s highways. The HPMS data is used in decision-making within the Federal Highway Administration, the U.S. DOT, and by legislators. Screenlines are counts taken at natural or man-made boundaries, like at a river crossing or a county line. The screenline data is used to validate the travel demand model which aids in projecting future traffic conditions on the road network.

In addition to the number of vehicles, traffic counts also measure the type of vehicles (cars or trucks) and speed. Counts are used with crash data to help communities decide where to improve roads with extra lanes or traffic lights. Counts can also be used by businesses to decide where to build or where to put signage.


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