Traffic and Transportation Group
ITE's Traffic and Transportation Group (TTG) is staffed by veteran engineers and experts. Because many such projects require a multi-disciplined effort, our Traffic and Transportation Group partners closely with our other professional ITE groups and with other firms that offer unique specialties which include environmental assessment, surveying and mapping, geotechnical engineering, and landscape architecture.
Infra Tech's Traffic and Transportation Group has worked extensively with FHWA’s digital Urban Traffic Control System and are fluent in numerous software packages including HCS, Passer IV, TRANPLAN, CORSIM, SYNCHRO, TRANSYT, AutoCAD, Intergraph Microstation, and ArcView. And the same is true for hardware, specializing in equipment like automatic traffic recorders, electronic turning movement counters, permanent and portable inductive loops and piezos, video/digital cameras, and total survey stations (with AI, GPS, and robotic GIS).
We also employ both public domain (MicroPaver 4.2) and commercial packages (Visual PMS) to develop inspection inventory, condition analysis, and prediction modeling in line with AASHTO Guidelines for Pavement Management Systems.
NYSDOT - Reconstruction of Route 347
Located in Region 10, the project added an additional lane in each direction along a five mile segment of NY Route 347 from the intersection of NY-454 to NY-25 in Suffolk County.
ITE’s scope of work included:
Three miles of roadway widening
Over three miles of noise walls
Over 2,000ft of retaining walls
Reconstruction of 14 traffic signals
New traffic signage, and the installation of durable pavement markings
Evaluation of existing pavement conditions
Soil erosion mitigation plans
Infra Tech’s Transportation and Traffic Design Group designed the replacement of 40 deficient NYSDOT sign structures in the five counties of New York City.
ITE’s Scope of Work Included:
Conducted site visits
Evaluated inspection reports
Prepared design repair details
Located new structures
Developed replacement structure details
Prepared new foundation designs
Developed cost estimates
NYSDOT - OVERHEAD SIGN STRUCTURES in Various Locations Throughout NYC
Traffic Monitoring System Services, Northern NJ Counties
A three-year contract, the TTG performed traffic monitoring services at NJDOT’s permanent and cyclical data collection stations in the eight northern New Jersey Counties.
The TTG’s services included obtaining 48-hour mechanical traffic counts (ATR), 12-hour manual turning counts and combined ATR, and manual-turning and classification counts. This was all done in service to help the state generate a relational database using GPS and GIS systems to assess more accurately the state’s ongoing transportation planning needs. But this wasn’t the first time ITE helped. Previously, ITE won a six-year contract to perform traffic monitoring services at NJDOT’s permanent and temporary data collection stations in five northern NJ counties.
NYSDOT - Major Deegan Expressway (I-87) Operations and Safety Project, Bronx County, NY
Serving as the prime consultant (with three subconsultants), the TTG developed operational and safety improvements on the Major Deegan Expressway corridor from West Fordham Road/207th Street to Van Cortlandt Park, with primary focus on the interchange at 230th Street and the Target department store on 225th Street.
The scope of work included development of traffic operational and accident data, a physical inventory of roadways and appurtenances, development and evaluation of alternatives, traffic simulation using SYNCHRO in the evaluation process, selection of a preferred alternative, and the preparation of preliminary and final design plans, specifications, and engineer’s estimates.
NYSDOT - I-84 and Route 9 Interchange and Route 9 Widening, Dutchess County, NY
ITE and another firm performed planning and engineering for the $20 million widening project in Dutchess County. This included preliminary engineering for 4-to-6 lanes (1.3 miles) of widening on Route 9 near I-84, reconfiguration of the interchange to accommodate project traffic growth, 2.2 miles of widening of I-84, and preparation of environmental assessments as required by the Federal and NYS DOT procedures (Class III Action of the Environmental Action Plan).
ITE’s Scope of Work Included:
Capacity analysis of 6 signalized intersections and ramp-and-freeway capacity analyses for a full cloverleaf interchanges using the 1985 HCM.
Accident analysis to identify potential safety hazards.
Traffic signal optimization using PASSER and TRANSYT-7F computer software.
Study/recommendation to provide access to major industrial park users in the project area (including an IBM facility).
NYSDOT - High Accident Location (HAL) Studies, Citywide, New York, NY
As the prime consultant, ITE performed a study with recommendation to improve safety at 50 HALs throughout New York City (NYSDOT Region 11). This included site inspections, physical and travel characteristics study, accident history, condition and collision diagrams preparation, application of database software to generate summaries/trends/rates/etc., and development of recommendations.
During the project, the TTG developed and implemented a new approach for HAL studies in Region 11. Dubbed the Road Safety Audit Review (RSAR) and approved by NYSDOT, the TTG conducted over 200 HAL studies using. Eliminating the need to study accident reports and collision diagrams, the RSAR identifies causal relationships between substandard safety roadway features and spatial location of accidents. Those relationships are then studies and paired with specific substandard features, leading to faster, more effective, and more specific improvement recommendations.
NYSDOT - High Accident/ Priority Investigation Locations (PIL) Studies, Long Island and Rochester, NY
Working with other firms, ITE joined three separate contracts to provide traffic safety and engineering services in Regions 4 and 10.
This project included accident data collection and analyses at 100 HALs in both Regions 4 and 10. The planning/analytical component included accident data evaluation, safety improvement alternatives development, evaluation of a recommended alternative at each PIL, cost estimates, and findings presentations and project reports.
The TTG designed traffic signals for over 40 signalized intersections on the Westside Highway and adjacent street network.
This project included new signs, sign structures, and ancillary facilities designed for the new 6-lane boulevard-type highway. The TTG completed the final design package for the traffic portion in a record 6-month period.