To support essential travelers during the COVID-19 public health crisis, CTDOT has launched a temporary program for food trucks to operate at highway Rest Areas in Danbury (I-84), Middletown (I-91), Wallingford (I-91) and North Stonington (I-95). Read more here: Food Trucks Temporarily Permitted at CTDOT Highway Rest Areas

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Transportation Studies (Share this page's direct link with a friend or coworker: www.ct.gov/dot/studies)
Middletown Area River Crossing Study
The Connecticut Department of Transportation (ConnDOT), in cooperation with the Federal Highway Administration, Midstate Regional Planning Agency, corridor municipalities and a Study Advisory Committee, are conducting a Middletown Area River Crossing Study. This planning study is evaluating the transportation needs and exploring long-term improvements for Route 9 between Interchange 10 in Middletown to Interchange 19 in Cromwell and Route 66/17 between the intersection of Route 66 and Route 16 in East Hampton to just west of Boston Road and Route 66 in Middletown. The ultimate of goal of this study will be to arrive at a location for a new river crossing of the Connecticut River in the Middletown area.
  
I-95 Branford to Rhode Island Feasibility Study
  
Connecticut Rail Governance Study
  
New Haven Rail Yard Improvements Environmental Assessment - Revised Appendices (pdf 35 MB)
  
New Haven Rail Yard Improvements Environmental Assessment (zip 35 MB)
  
West Haven Railroad Station Final Environmental Impact Evaluation
Final State Environmental Impact Evaluation for the New Railroad Station at City of West Haven or Town of Orange. State Project NO. 106-116
  
I-84/Route 8 Waterbury Interchange Needs Study (pdf)
The Connecticut Department of Transportation (ConnDOT) and Council of Governments Central Naugatuck Valley (COGCNV) have identified the need to evaluate the transportation deficiencies and define the long‑term transportation improvements needed along the I-84 corridor between Interchanges 18 and 23 and the Route 8 corridor between Interchanges 30 and 35 in Waterbury. The "Project Team" involved in the completion of this study consists of ConnDOT, Federal Highway Administration (FHWA), the Wilbur Smith Associates (WSA) consultant team, and the COGCNV.
  
RT 2/2A/32 Final Environmental Impact Statement
The project is known as the Route 2/2A/32 Transportation Improvement Project, and is located in New London County, Connecticut. Alternatives have been identified and evaluated for transportation improvements Route 2 from Norwich south to Interstate 95 (I-95) in Stonington.
  
Pearl Harbor Memorial Bridge (Q-Bridge) Crossing New Haven Harbor
The Selected Project is for the replacement of the existing Interstate 95 (I-95) crossing over New Haven Harbor, known as the Pearl Harbor Memorial Bridge (locally known as the “Q” Bridge)
  
I-84 West of Waterbury Needs and Deficiencies Study
The Connecticut Department of Transportation and the Council of Governments of the Central Naugatuck Valley have carried out a study of the deficiencies and needs of I-84 corridor from the Housatonic River in Southbury through the I-84 / Route 8 Interchange in Waterbury. In response to identified operational and safety deficiencies, recommendations for near and long term planning improvements or other actions were made to best meet the existing and future needs of the region.
  
Hartford West Major Investment Study Final Report
  
Waterbury and New Canaan Rail Branch Lines Study
The Connecticut Department of Transportation (CTDOT) in cooperation with the South West Regional Planning Agency (SWRPA), Greater Bridgeport Regional Planning Agency (GBRPA), Council of Governments of the Central Naugatuck Valley (COGCNV), and the Valley Council of Governments (VCOG), is preparing this needs and feasibility study for improvements to transit service along the New Canaan and Waterbury Branch corridors of the New Haven Line. The results of this study will identify potential service and infrastructure improvements for the 27-mile rail corridor between Milford and Waterbury, and the 7.9-mile rail corridor between Stamford and New Canaan. It will also provide decision-makers with the information necessary to determine how the CTDOT-owned New Canaan and Waterbury Branches fit into an overall statewide transportation strategy that balances needs and funding ability.
  
I-84 Environmental Impact Study
  
New Haven-Hartford-Springfield Line High Speed, Intercity Passenger Rail Project
The Connecticut Department of Transportation, with the Federal Railroad Administration (FRA) acting as the Lead Agency and with the cooperation of the Federal Transit Administration (FTA) published an Environmental Assessment/ Environmental Impact Evaluation (EA/EIE) of the New Haven-Hartford-Springfield Line High Speed, Intercity Passenger Rail Project.Improvements to this corridor are considered necessary in order to provide an alternative means of travel that is convenient, frequent, and reliable. Issues that have been analyzed in depth include operational characteristics, infrastructure needs, transit-oriented development (TOD),the effects of the alternatives on noise, air, water quality, and cultural and recreational resources, as well as other social, economic and environmental effects, and capital and operating costs.
  
Buckland Area Transportation Study (pdf)
The Connecticut Department of Transportation (CTDOT) and Capitol Region Council of Governments (CRCOG) initiated the Buckland Area Transportation Study (BTS) to identify near- and long-term transportation improvements for the roadway network in the Buckland commercial area which encompasses portions of the Towns of Manchester, South Windsor and East Hartford. The "Project Team" involved in the completion of this study consists of CTDOT, Federal Highway Administration (FHWA), the Dewberry consultant team, and the CRCOG.
  
Final Environmental Assessment (FEA) and Proposed Stage Relocation Plan
The Connecticut Department of Transportation (Department) has completed the Final Environmental Assessment (FEA) for the proposed voluntary acquisition and noise insulation of homes within the noise impact area of the Waterbury-Oxford Airport (OXC). The Department has also prepared the Final Proposed Stage Relocation Plan that outlines the process, phasing, and requirements of the acquisition program.
  
State Pier Deficiency and Needs Study (pdf)
The State Pier Needs and Deficiency and Study was commissioned by the Connecticut Department of Transportation in May 2010 and published in March 2011. The Study determined the best business uses of the existing facility and the infrastructure improvements that would facilitate those businesses. The Study provided a Master Plan and Implementation Strategy.
  
Route 8 Deficiencies and Needs Study Int. 22-30
The Connecticut Department of Transportation (CTDOT), the Valley Council of Governments (VCOG), and Council of Governments of Central Naugatuck Valley (COGCNV) completed this study to evaluate deficiencies and define transportation improvement needs along the Route 8 corridor from Seymour to Waterbury just south of I-84 (Interchanges 22 to 30). The corridor for this Deficiencies/Needs Study spans the communities of Seymour, Beacon Falls, Naugatuck, and Waterbury.
  
Buckland Area Transportation Study
The Capitol Region Council of Governments (CRCOG) and the Connecticut Department of Transportation (CTDOT) initiated the Buckland Area Transportation Study (BTS) in 2006 to identify near and long-term transportation improvements for the roadway network in the Buckland commercial area which encompasses portions of the Towns of Manchester, South Windsor and East Hartford.
  
Route 3 Traffic and Development Study
The Route 3 Traffic and Development Study was conducted in cooperation with the Town of Rocky Hill, the Capitol Region Council of Governments (CRCOG), and the Connecticut Department of Transportation (ConnDOT). The main roadways included in the study were as follow: Cromwell Avenue (Route 3), West Street (SR 411), Brook Street, New Britain Avenue (Route 160), Elm Street (Route 160), and Main Street (Route 99). Local roads that play an important role in traffic circulation within this network were reviewed as well.
  
Norwalk Transportation Management Plan (DOT01020336PE)
The City of Norwalk utilized federal Surface Transportation Program funds from the Bridgeport-Stamford urbanized area with local matching funds to develop a comprehensive Transportation Management Plan. The goal of the plan was to assist with the evolution of the existing and limited transportation system, which is automobile-oriented, so as to achieve a broader, more sustainable, multi-modal transportation system.
  
Danbury Branch Electrification Feasibility Study
The Connecticut Department of Transportation (CTDOT) launched the Danbury Branch Electrification Feasibility Study to evaluate the feasibility of electrifying the Danbury Branch commuter rail line as well as other possible alternatives to improve rail service on the Branch. Phase I of this Study was completed in 2006. Phase II of this Study began in November 2007, and included further refinement of selected improvement alternatives, performance of a detailed evaluation to determine the environmental effects of the Phase II alternatives with the anticipation of publishing an Environmental Impact Statement (EIS), and selection of a preferred alternative(s). In the Fall of 2012, the study became focused on a preferred alternative that would not extend beyond the existing Danbury Branch service area. It was determined in consultation with the Federal Transit Administration (FTA) that an Environmental Assessment (EA) process (and not the EIS) would be the appropriate federal environmental documentation. This study website provides an additional tool to help keep the public informed of all activities in the study and EA process.
  
Danbury Branch Electrification Feasibility Study Phase II
5/17/2016 - Final Project Update - Over the past few years, and throughout the course of this study, there have been a number of improvements along the Danbury Branch Line. These improvements include the completion of a transportation signal system along the line which resulted in a 9% increase in ridership in 2015. Projects such as Positive Train Control and a parking expansion at Bethel station represent some of the future initiatives planned along the line. These improvements are part of Governor Dannel Malloy’s 30-year transportation program, Let’sGoCT, which outlines investments needed now to make our transportation system safer, more reliable, and more responsive to our 21st century life-styles and tremendous economic opportunities.
  
Central Connecticut Rail Study
The State of Connecticut, through CTDOT, determined the need to conduct a market analysis and feasibility study regarding the implementation of fixed-guideway rail or bus transit service in the Central Connecticut Corridor, directly serving the cities of Waterbury, Bristol, and New Britain and adjacent towns of Plainville, Berlin, and Plymouth. This initiative is referred to as the Central Connecticut Rail Study (CCRS).
  
I95 West of New Haven Widening and Operational Improvement Feasibility Study
The purpose of this technical memorandum is to evaluate the feasibility of adding one additional operational lane in each direction along I-95 between the Connecticut/New York state line in Greenwich and Bridgeport. Additionally, the study evaluates spot improvements that can be constructed between Bridgeport and New Haven, which will provide safety and operational improvements to the corridor. This evaluation is intended to be a high-level analysis of the constraints and issues with respect to adding the additional operational lane to I-95 and the associated impacts and costs.
  
Route 1 BRT Feasibility Study Final Report
The Route 1 Bus Rapid Transit (BRT) Feasibility Study is an important element of the 5-Year Ramp-Up Plan of Let’sGoCT!, Governor Malloy’s transportation “Call to Action.” Let’sGoCT! represents a 30-year vision for Connecticut’s best in class transportation system, while the 5-Year Ramp-Up Plan outlines the initial steps toward that vision. The Route 1 BRT Feasibility Study seeks to provide a blueprint for bringing faster, more reliable bus service to the heavily traveled Route 1 corridor between the New York State Line and New Haven within the next five years.
  
I-95 East of New Haven Study Update 2018-Full Report
The Connecticut Department of Transportation prepared an update to the 2004 Branford to Rhode Island Feasibility study. This study includes update volume and crash data, and evaluates the feasibility of improving operational deficiencies along the corridor.
  
I-95 East of New Haven Study Update 2018-Report Appendices
  
CT Statewide Bus Study Final Report
The Connecticut Statewide Bus Study assessed travel needs and evaluated performance of the state’s fixed route bus system. This study provides an understanding of the current and future direct, fixed route transit travel needs of the state’s residents and employees, and provides recommendations to better align the existing bus system to meet these needs while providing the planning framework for a more interconnected and user-friendly multi-modal transit network that supports economic growth and environmental goals.
  
I-95 (West of New Haven) Strategic Implementation Plan
This Plan accompanies the I95 West of New Haven Widening and Operational Improvement Feasibility Study. The Strategic Implementation Plan (SIP) presents design concepts of short, mid, and long-term projects that address congestion bottlenecks due to operational deficiencies. These projects represent the product of a full corridor analysis that utilized microsimulation traffic modeling and a focus on delivering projects that have a significant benefit on reducing travel times that can be done, and have significant benefits, independent of full-scale widening that have independent utility.
  

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