Our goal is to keep Michigan's motorists safe, informed, and mobile. That is why MDOT offers many ways to help ease the stress of commuting by providing information that commuters want and need as they make daily travel decisions.
Did you know that millions of people visit the Great Lakes State every year? Whether you are from out of state or right here in Michigan, we want to ensure your travel throughout Michigan is informative, comfortable, and fun.
At MDOT, safety is paramount. It is our goal to improve overall safety for all road users, internal staff, contractors performing work on roads, and emergency responders.
Every year, MDOT produces an updated version of the state transportation map. The department also produces numerous geographic information system maps to assist commuters, tourists, and businesses.
In Michigan, there are three publicly-owned and operated bridges: Mackinac Bridge, Blue Water Bridge, and International Bridge. There are also two privately-owned and operated border crossings: Ambassador Bridge and Detroit-Windsor Tunnel.
A vibrant and sustainable multimodal transportation system is vital to Michigan's future economic viability and competitiveness. From aviation to public transportation, rail, freight, and marine, MDOT is involved in all modes of transportation.
MDOT's Office of Business Development (OBD) manages external civil rights programs, such as the Disadvantaged Business Enterprise (DBE) Program, the On-the-Job Training Program, and the Small Business Program, and ensures compliance with Title VI of the Civil Rights Act of 1964, equal opportunity requirements for contractors, and the Americans with Disabilities Act of 1990.
MDOT is committed to ensuring that projects, programs and services are performed without discrimination, under Title VI.
Contractors and vendors who work on federally assisted projects are required to establish and carry out policies to assure that applicants are employed and that employees are treated during employment without regard to their race, religion, sex, sexual orientation, gender identity, color, national origin, age, or disability.
Resources for minorities, women, and other socially/economically disadvantaged persons.
The Bureau of Bridges and Structures is responsible for statewide policy, procedure development, and execution to ensure all bridges and structures are designed, constructed, maintained, and operated to ensure safety.
MDOT provides funding for competitive grant and loan programs primarily, but not exclusively, for state and local road agencies for the greatest impact on economic development and job creation.
MDOT's Highway Programs focus on the development and management of the department's roadsides, environmental efforts and policies, and federal-aid highway information.
The Bureau of Transportation Planning develops and implements a comprehensive transportation planning process which results in investments that are consistent with the policies of the State Transportation Commission.
Research Administration supports and promotes innovative research that encourages safe, sustainable and cost-effective transportation solutions throughout Michigan.
MDOT provides technologies and partnerships in order to make the transportation system safer and less congested.
MDOT has ongoing government-to-government communication with 12 federally recognized sovereign tribal governments whose lands are situated within Michigan.
The Office of Communications works with the media to inform the public of MDOT's mission, policies and practices in a positive, consistent and credible manner. The office is responsible for media relations, social media, and website development.
Public participation is integral to efficient, effective and responsive transportation decisions. At MDOT, we want to ensure your voice is not only heard, but makes a difference in moving Michigan forward.
Transportation Reality Check takes on transportation myths and misconceptions, and explains why MDOT does things the way they do.
Resources for the development of quality transportation project documents and services.
Resources for specialized engineering and technical support for construction staff.
Resources for prequalification, bid letting, contract awards, and payments.
Resources for consultant advisories, prequalification information, contracts, and proposals.
Resources for grant and economic development opportunities and project coordination.
Resources for local governmental agencies that regularly require access to state right of way.
Resources for MDOT real estate standards, policies and procedures, and training.
Resources for general work zone mobility guidelines for engineering and technical staff.
Resources for rules, guidelines, restrictions, and permits to safely transport goods.
Open data refers to data that has been officially classified as public that can be made freely available for everyone to use without credentials or restrictions. MDOT promotes transparency, innovation and informed decision-making by providing datasets classified as public freely available to everyone.
MDOT's goal is to support the implementation and use of GIS software and hardware through innovative solutions that solve spatial problems and support more informed decisions about Michigan's transportation infrastructure.
The technical training (TT) course schedule lists the various technical training courses offered through the Office of Organizational Development during the construction off-season months for the local agencies and consultants.
The Internship Program offers undergraduate and graduate students interested in civil engineering and construction management careers, valuable experience by working with professional field staff.
TRAC engages high school and middle school students in solving real-world problems, such as designing bridges or analyzing the environmental effects of building a highway.
The MDOT Transportation Career Pathways Program is committed to helping you build a fulfilling and rewarding career in the transportation industry, even if you're not entirely sure where to start.
MDOT's Engineer Development Program (EDP) is a rotational program that provides new engineers experience in multiple work areas while being assigned a senior-level mentor.
The HBCU TDRP is a unique partnership between MDOT and Michigan colleges and universities to offer on-the-job training to undergraduate students pursuing degrees in engineering or transportation-related careers.
The Veteran Internship Program assists honorably discharged veterans of the United States Armed Forces as they transition into the civilian workforce.
Engineering Week videos and lesson plans are all-inclusive resources to show early elementary to high school students the career of civil engineering at MDOT.
At MDOT, we are here to help. If you can't find what you are looking for in our popular topics, frequently asked questions or website search, give us a call at 517-241-2400 or fill out our contact form.
MDOT's seven region offices each handle transportation-related construction, maintenance and programs within the region's geographic boundaries.
Governmental Affairs represents MDOT's interests as new or amendatory legislation is developed or moving through the legislative process.
Commissions and councils provide a public forum for policy development and implementation.
Policies help the department implement its mission of serving and connecting people, communities, and the economy through transportation.
Allows MDOT's regions and engineers to expand their knowledge on how Michigan freeways are operating over time and how they compare to each other.
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The Highway Performance Monitoring System (HPMS) program is a national highway information system that monitors data on the extent, condition, performance, use, and operating characteristics of the nation's highways.
HPMS data is used extensively at the federal level in the analysis of highway system condition and performance, but more importantly in the appropriation of Federal Highway dollars and in support of federal efforts to secure increased transportation funding.
Code of Federal Regulations Title 23 Part 500.203 sets the general requirements for the state's data collection program. It directs that each state develop and implement a Traffic Monitoring System for Highways program on all roads receiving federal funds.
HPMS is a federal data collection and reporting program regarding the extent, condition, performance, use, and operational characteristics of the nation’s highways. It was created in 1978 by the Federal Highway Administration (FHWA) and has evolved over the decades to meet changing business needs. All states and territories participate in HPMS. Regulation 23 CFR 1.5 provides the FHWA administrator with authority to request such information deemed necessary to administer the federal-aid highway program, and 23 CFR 420.105(b) requires states to provide data that support FHWA's responsibilities to Congress and the public.
Learn more about Certified Public Mileage (CPM).
Roadway Attribute Data is reported on various extents of the public road network. These extents include:
For detailed descriptions of the Roadway Attributes data, see the HPMS Field Manual.
For a list of road event collection methods, see the HPMS Field Manual.
The All Roads Network of Linear Referenced Data (ARNOLD) segments requirement is the geospatial component of HPMS. It is a GIS layer of all public roads with a route ID and measures. Michigan uses the PR network for HPMS’ ARNOLD component. All roadway attribute and sample limits data maps to the PR network with a PR-route ID and mile point.
Michigan’s ARNOLD can be downloaded at the Michigan Open Data Portal.
States are required to submit travel time metric data for the interstate system and non-interstate national highway system by June 15 to the HPMS, annually, as required in 23 CFR 490. All data are to be reported for both the inventory and non-inventory directions of travel. This fulfills the PM3 requirement of the transportation performance measures under MAP-21. Travel Time Metric Data includes:
The majority of HPMS data is collected and reported on a sample-basis. HPMS uses a sampling of all public roads not functionally classified as local roads or rural minor collectors to provide an expandable base to represent condition, use, and operational information for the nation’s roadways.
Learn more about HPMS sampling and TOPS.
HPMS is the official source of national level data for the nation’s highways. HPMS data is widely accepted and used throughout the transportation community. Users of HPMS data include governmental entities, public and private sector research, industry, media, among others. HPMS information is used for a variety of FHWA publications, programs, and business processes. These include:
HPMS data comes from a variety of sources. MDOT maintains all HPMS data in its roads and highways database. Other MDOT databases house data that is provided to HPMS. Traffic data is collected by the Travel Information Unit, who partners with regional and local agencies to collect traffic counts. Pavement distress data is collected by a third-party vendor and also the Transportation Asset Management Council (TAMC). For non state-owned sample sections, MDOT partners with Metropolitan Planning Organizations and Regional Planning Agencies, who coordinate with local road agencies to collect data.
