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 Traffic Impact Analysis
TEC Engineering has conducted traffic impact studies for various developments. Field data including traffic counts and field measurements are collected by our staff. Site generated traffic volumes are estimated based specifically on the proposed land-use of the site using the Institute of Transportation Engineers (ITE) Trip Generation book. Future traffic volumes are then projected according to an approved growth rate. Traffic signal warrants, storage lane warrants, storage lane length calculations, and capacity analyses are then completed based on the generated and projected traffic volumes. Based upon these analyses, TEC Engineering makes recommendations to provide an adequate level of service along the development’s adjacent roadways. These recommendations address signalized/unsignalized access spacing, roadway and intersection improvements/alterations, required storage lanes, existing signalization alterations, and potential turning movement restrictions.
Safety Studies
TEC is qualified specialized in accident analysis and comprehensive Safety Studies of high-accident intersections and corridors. These studies examine the underlying causes of crashes and develop countermeasures for correcting the safety deficiencies. Often, it is a series of factors that leads to driver inattention and accidents, and determining the best solutions to safety problems requires expert analysis of field data and accident reports, and the ability to engineer short and long-term solutions for improvements to mitigate the safety problem.
TEC has performed safety studies for state DOTs and municipal agencies utilizing traditional engineering methodologies as well as new video-based accident recording technologies for longer-term safety analysis.
Interchange Justification/Modification Studies
TEC is well skilled in the analysis and design necessary for freeway Interchange Studies. An Interchange Justification Study (IJS) provides information and documentation to assist transportation agencies in assessing the impacts to safety and mobility on the freeway for a proposed new interchange location. An Interchange Modification Study (IMS) does the same for a major change to an existing freeway interchange location. Adequate control of access to a freeway system is critical to providing the highest level of service with regard to safety and mobility.
Corridor Studies
Corridor studies have been at the heart of TEC’s planning activities from the beginning. These studies look at transportation issues across defined travel corridors, in addition to individual intersections, so that broader impacts can be observed. TEC reviews roadway conditions, signage, pavement markings, intersections, curb cuts, lighting, bicycle and pedestrian facilities, and traffic signals in the corridor to analyze operational and safety problems. Analysis is performed in light of growth and development trends. These studies are intended to identify current deficiencies and recommend short-term and long-term improvements for enhanced traffic conditions in the corridor area. The studies define efficient, safe, economical, and accessible transportation choices for local residents and travelers. Additionally, they serve as references for the development of access management plans.
Field Data Collection
TEC has an experienced staff with extensive knowledge and proper equipment for field data collection. Field data includes mechanical traffic counts, manual traffic counts, geometric observation, photography, measurements, and more.
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