Traffic Data Collection Services

The New York State Department of Transportation (NYSDOT) is assisting Dewberry Engineers Inc. in the selection and retention of a Subcontractor, to perform Traffic Data Collection for the Consultant and State Design Team in NYSDOT Region 10, under Contract No. D042129 PIN 0534.91. The selected Subcontractor shall be solely responsible to provide all labor, operators, materials, machinery, tools, and equipment related to Traffic Data Collection for the traffic engineering analysis of the Southern State Parkway (SSP) and Meadowbrook State Parkway (MSP) interchange project area in NYSDOT Region 10, Nassau County in the State of New York. The required traffic data collection program will assist New York State Department of Transportation personnel, or their authorized designee, with the traffic data collection. All work, equipment and procedures shall meet as a minimum the requirements of the New York State Department of Transportation Standard Specifications, regulations, directives, guidelines, policies, procedures, manuals, and all applicable laws. The Traffic Data Collection effort will include: · The purpose of this data collection plan is to identify, gather, review, and collect traffic data that will be used to establish a base condition for the performance of traffic analysis, traffic modeling, and related transportation studies. · The study area will be comprised of the Southern State Parkway and Meadowbrook State Parkway mainlines and all ramps included in the Southern State Parkway and Meadowbrook State Parkway interchange. · It is our intent to collect data in the Fall 2026 (before Thanksgiving). · In the event the data collection effort cannot be conducted in the Fall 2026, the selected subcontractor will coordinate with NYSDOT and Dewberry to develop a contingency plan. · A video survey methodology using high-resolution cameras, such as Miovision, shall be used to collect traffic count information. · Miovision cameras will be utilized to collect hourly traffic volumes along the Southern State Parkway and Meadowbrook State Parkway mainlines and ramps in lieu of the conventional pneumatic-tube Automatic Traffic Recorders (ATRs). · The Miovision cameras will be configured to collect hourly count for a 24-hour period for a twelve (12) day period including three midweek days and two weekends. · The cameras will be installed at 16 locations along the highway mainline and ramps within the study area. · All data collection will be conducted in compliance with NYSDOT’s annual Traffic Monitoring Work Week Calendar. It should be noted that the results of raw counts must be calibrated by the contractor to represent the total number of vehicles. · No field traffic surveys will be conducted during inclement weather conditions, during State and Federal holidays, or when schools are not in session. · Representative mid- weekday traffic count data will be collected on Tuesdays, Wednesdays, and Thursdays. · The subcontractor must have all required permits, registrations and approvals as needed to install and monitor data collection devices along the Southern State Parkway and Meadowbrook State Parkway mainlines and ramps. If needed, the subcontractor will provide “bumper” trucks at their own expense. Hourly Traffic Count Locations (20) 1. Southern State Parkway (SSP) EB mainline, east of Park Avenue overpass 2. SSP EB mainline, just east of Exit 22S (but before entrance ramp) 3. SSP EB Exit Ramp #22S to MSP SB 4. Meadowbrook State Parkway (MSP) SB Entrance Ramp to SSP EB 5. SSP Exit Ramp #22N to MSP NB 6. MSP NB Entrance Ramp to SSP EB 7. SSP EB mainline, just west of Meadowbrook Road 8. SSP EB Exit Ramp #23 to Meadowbrook Road 9. MSP NB mainline, north of Washington Avenue overpass 10. MSP NB Exit Ramp M6 West to SSP WB 11. MSP NB mainline, just past Exit M6 East 12. SSP WB Exit Ramp #22N to MSP NB 13. MSP NB mainline, north of Jerusalem Avenue overpass 14. MSP SB mainline, north of Jerusalem Avenue overpass 15. MSP SB Exit Ramp M6 West to SSP WB 16. SSP WB Exit Ramp #22S to MSP SB 17. MSP SB mainline, north of Washington Avenue overpass 18. Meadowbrook Road Entrance Ramp to SSP WB 19. SSP WB mainline, east of Exit 22N 20. SSP WB mainline, east of Park Avenue overpass Travel Time and Delay Runs: Travel Time and Delay Runs will be conducted on the highway and ramp segments along the Southern State Parkway (between Nassau Road and Merrick Avenue) and the Meadowbrook Parkway (between Hempstead Turnpike and Babylon Turnpike). Travel time and delay runs will be conducted using the "floating car" method (test car) for a typical weekday and Saturday that captures the AM, Midday and PM peak periods. The test car will be driven by a 2-person survey team, a driver and a GPS data recorder at prevailing speeds in the general traffic stream along the travel route. Elapsed time, mileage and delays (e.g., accident, signal, vehicle breakdown, etc.) will be recorded at the designated checkpoints, i.e., interchanges and major cross streets, over a predetermined travel route. The proposed travel time and delay runs will be conducted concurrently with the other traffic counts. The travel time data will be used to estimate average, maximum and 85th percentile travel times and speeds on the selected travel routes for each peak period and survey day. For budgeting purposes, please make the following assumptions: · Travel time and delay runs will be conducted over two survey days, a typical weekday and a Saturday. · Typical weekday will include a Tuesday, Wednesday or Thursday – 12-hr day, 7AM to 7PM · Typical Saturday - 10-hr day, 8AM to 6PM · Six (6) travel time and delay routes are required, details to be defined by consultant and NYSDOT in coordination with the selected contractor · A total of 3 vehicles and 6 surveyors required for each survey day - The routes can by three (3) two-man teams per survey day (each team can conduct 2 routes) · A minimum of 25 travel time and delay runs will be conducted per route per day Travel Time and Delay Runs will be submitted by subcontractor as a separate cost. Required Experience: As the safety of human lives is at risk, the Subcontractor (and their personnel) shall be thoroughly knowledgeable, trained, and have a minimum of five (5) years of documentable experience in the safe operation and performance of traffic data collection and any/all types of equipment that shall be used on the project. All Subcontractors’ personnel assigned to this work shall have the necessary certifications to perform said work and must be able to communicate in a clear and effective manner. All equipment must meet NYSDOT requirements, regulations, directives, guidelines, policies, procedures, manuals and all applicable laws. Interested parties may receive additional details regarding the scope of work, including the Traffic Data Collection Plan, from: Mr. Donald Tone, by emailing at [email protected] or by phone at (646) 434-2845, which explains in more detail the nature of the work, requirements and conditions needed to successfully complete this assignment. Dewberry Engineers has a prime contract with NYSDOT, Contract No. D042129. All applicable provisions of the prime contract apply to the subcontract. Dewberry Engineers reserves the right to reject any and all bids, to waive any and all informalities, to invite for new bid proposals and to disregard all nonconforming, non-responsive or conditional bids. Insurance: Insurance requirements are as follows and shall be in accordance with the specifications in the Bid Documents: Policies of Bodily Injury Liability and Property Damage Liability Insurance; Policies of Automobile and Truck Insurance; Workmen’s Compensation Insurance. Permits: The traffic data counting contractor will be responsible for obtaining the necessary permits to mount traffic data collection equipment and for coordinating with state agencies as necessary. Bid Documents: Interested firms may obtain a copy of the Bid Package including the Request for Proposals with Bid Sheets and Contract Agreement by contacting the Bid Document Contact listed below. Contact: Donald Tone, Dewberry Engineers Inc., 5 Penn Plaza, New York, NY 10001-1810, e-mail: [email protected] or by phone: (914) 715-8604. Deadline: Proposals prepared in conformance with the Bid Documents shall be accepted until 11:59 PM (Local Time), October 30, 2026, in the office of Dewberry Engineer Inc., 5 Penn Plaza, New York, NY 10001-1810, or to [email protected]. Bid Letting: Signed proposals must be received by 11:59 PM (local time), on October 30, 2026. Proposals received after the deadline will not be accepted. No bid information or interpretations can be provided orally; all must be by written addenda sent out at least three (3) days before the submission of bids. The Award of the Contract will be made within seven (7) calendar days after receipt of Bids, subject to final approval of NYSDOT. Under the requirements of the State Procurement Act all communications regarding advertised projects are to be channeled through the Contract Management Bureau's Designated Contact: Mr. Donald Tone of Dewberry Engineers. Until a contract is approved, contact with any other NYSDOT or Dewberry associates or employees concerning this project should not be made unless otherwise directed by the Office of Contract Management. Communications made contrary to this policy and deemed an attempt to influence the outcome, may result in disqualification. Service-Disabled Veteran-Owned Business (SDVOB) SDVOB Goal: 0.00% Minority / Women Business Enterprise contracting goals (MWBE) MBE Goal: 0.00% WBE Goal: 0.00% Disadvantaged Business Enterprise contracting goals (DBE) DBE Goal: 0.00%