In this article, we will be taking a look at the 20 most congested states in the US. If you do not want to learn about the global congestion challenges, head straight to the 5 Most Congested States in the US.

In the United States, traffic congestion is a pervasive issue impacting daily commutes, productivity, and overall quality of life. Across the nation, certain states like Washington, Georgia, and Hawaii, among other, stand out for their notorious congestion levels, where gridlock seems almost inevitable. From bustling urban centers to sprawling suburban areas, these states grapple with the challenges of accommodating growing populations and increasing vehicle numbers. Understanding the factors contributing to congestion in these regions is crucial for devising effective solutions to alleviate traffic woes and enhance mobility for residents and visitors alike. 

The Growing Significance of Traffic Management in Addressing Global Congestion Challenges 

The global traffic management market is experiencing significant growth, with a projected increase from USD 42.3 billion in 2023 to USD 72.5 billion by 2028 at a CAGR of 11.4%. Traffic management involves planning, monitoring, and controlling vehicular and pedestrian movement to ensure efficient and safe flow on roads and transportation networks. Key drivers in this market include connected cars, rising demand for real-time traffic information, increasing urban population, and inadequate infrastructure. 

Traffic congestion is a common issue caused by factors like increasing urban population, rising number of vehicles, and inadequate infrastructure. The growth in traffic leads to inefficiencies in transportation systems, longer commute times, increased fuel consumption, and environmental pollution. Implementing effective traffic management strategies is crucial to alleviate congestion and enhance overall mobility. 

In the US, the traffic management market is significant, with key players like Cisco, IBM, Siemens, and others operating in this sector. The US is expected to account for a notable market share of 25% by 2033 in the global traffic management market. The country invests heavily in traffic control systems to reduce congestion and enhance road safety. The global integrated traffic systems market generated $28.05 billion in 2022 and is anticipated to reach $66.14 billion by 2032 at a CAGR of 9.03%. 

The US spends a substantial amount on traffic control systems to address congestion issues and improve transportation efficiency. As part of the global trend towards smart cities and intelligent transportation systems, investments in advanced traffic management technologies are crucial for sustainable urban development. 

Global Traffic Trends: Dublin Surges in Congestion, New York Stalls, and Detroit Dashes Ahead 

A recent CDC report reveals the global impact of road accidents: 1.35 million lives lost annually, roughly 3,700 daily, spanning car, bus, motorcycle, and bicycle crashes. Projected to rank eighth in global causes of death, with a staggering economic cost nearing $1.8 trillion by 2030. Notably, crash death rates are three times higher in low-income countries. 

Traffic congestion in the United States costs over $300 billion annually, with Los Angeles alone spending $19 billion in 2017. This leads to lost productivity, increased transportation costs, and environmental damage. Strategies to reduce congestion include improving public transportation, implementing road fares, and prioritizing infrastructure enhancements like pedestrian-friendly spaces and efficient public transit systems. The trucking industry faces significant delays, costing an average of $6,478 per truck. Solutions involve investing in smart traffic management systems, promoting alternative transportation modes, and implementing congestion pricing schemes to incentivize behavior change. 

Addressing traffic congestion extends beyond loss of life, encompassing air and noise pollution. Countries are investing in public transport infrastructure, exemplified by India’s $7 billion plan for 10,000 electric buses and seven new railway projects worth INR 325 billion to enhance mobility across nine states. 

In 2023, Dublin topped the charts for global congestion, narrowly missing the title of the most congested city due to shorter travel times per 10 km. Other cities, like Mexico City, Lima, Bengaluru, and Bangkok, grapple with severe traffic issues. Meanwhile, New York City saw slow traffic, with drivers spending nearly 24 minutes on a six-mile trip, while Detroit emerged as one of the easiest cities to navigate, requiring just under nine minutes for the same distance. 

Factors influencing travel speeds extend beyond traffic volume, encompassing road quality and geographical features such as hills and rivers. For instance, while cities like Nashville, Tampa, Austin, and Houston rank among the most congested globally, they also feature in the top 10% in terms of travel time efficiency, as highlighted in a study from the National Bureau of Economic Research. 

Tech giants like Alphabet Inc (NASDAQ: GOOG)’s Google and Conduent Incorporated (NASDAQ: CNDT) are tackling traffic congestion through services like Google Maps and advanced analytics. Google-owned Waze allows drivers to report incidents for real-time updates. Uber (NYSE: UBER) promotes ridesharing through features like UberX Share, reducing individual cars on the roads. 

Alphabet Inc (NASDAQ: GOOG)’s Google Maps, powered by crowdsourced data, effectively alleviates traffic congestion by providing real-time updates to users. Utilizing advanced machine learning, it predicts traffic patterns, aiding policymakers and researchers. Google’s commitment to refining its AI algorithms and partnerships with research labs like DeepMind ensures accurate traffic information globally. Despite challenges in the online ad market, Alphabet Inc (NASDAQ: GOOG)’s reported strong earnings, with revenue reaching $69.79 billion and a $70 billion share buyback authorized. Google Cloud revenue showed profitability, reaching $7.45 billion. 

Conduent Incorporated (NASDAQ: CNDT) is a key player in tackling urban traffic congestion with innovative transportation management solutions. Their comprehensive approach includes tolling techniques, congestion pricing, and transit connections. By integrating human-centric design and advanced imaging technologies, Conduent Incorporated (NASDAQ: CNDT) aims to reduce gridlock and improve mobility. They emphasize data-driven strategies aligned with sustainable urban transportation trends, promoting social equity.

Despite exploring strategic alternatives, Conduent Incorporated (NASDAQ: CNDT) remains dedicated to delivering essential services globally. With strong financial performance, including Q4 revenue of $953 million and full-year revenue of $3,722 million, Conduent is well-positioned to continue driving revenue capture for public sector transportation agencies while enhancing traveler experiences and reducing congestion and emissions. 

Our Methodology 

For our methodology, we have ranked the most congested states in the US based on vehicles per mile. For the accuracy of data, we relied on Title Max. 

Here is our list of the 20 most congested states in the US.

20. Georgia 

Vehicles Per Mile: 63.97 

Georgia, particularly Atlanta, faces severe traffic congestion issues, ranking among the top most congested urban areas in the U.S. Drivers in Atlanta lose considerable time and money due to traffic jams, with the average U.S. driver losing $869 in time and spending an extra $129 on gas for commuting. Atlanta’s congestion is worsened by major bottlenecks such as Spaghetti Junction, Interstate 20 at Interstate 285, and Interstate 75 at Interstate 85, causing significant delays for drivers. The state is also ranked as the worst state for commuters due to factors like average one-way commute time and the share of workers using private transportation.  

19. Texas 

Vehicles Per Mile: 66.57  

Texas faces significant traffic congestion issues, with notable congestion hotspots including Houston’s West Loop, Dallas’ Woodall Rodgers Freeway, and IH-35 in Austin. The Texas Department of Transportation (TxDOT) is actively combating congestion through initiatives like Texas Clear Lanes, allocating $29 billion to non-tolled projects since 2015. Traffic delays in 2021 cost over $3.8 billion in lost time and wasted fuel, with truck congestion adding an extra $620 million burden.  

18. Illinois 

Vehicles Per Mile: 71.31 

Illinois stand among the most congested states in the US, impacting road safety and traffic infrastructure. High traffic volumes contribute to traffic accidents and fatalities, underscoring the necessity for improved traffic management and infrastructure. Congestion strains the state’s traffic infrastructure, leading to increased travel times and reduced efficiency.  

17. North Carolina 

Vehicles Per Mile: 74.09 

North Carolina stands among top congested states in America, leading to a notable increase in traffic fatalities and associated financial costs. From 2019 to 2022, the state saw a concerning 21% rise in traffic fatalities, with a corresponding 31% increase in fatality rates per 100 million vehicle miles traveled. These accidents incurred a staggering $68 billion in economic and quality-of-life costs in 2022, with a particular surge in fatalities among bicyclists and pedestrians. Reports from organizations like TRIP underscore the urgent need for comprehensive approaches to enhance road safety and reduce fatalities in the state. 

16. Washington 

Vehicles Per Mile: 78.68 

Washington State grapples with significant congestion issues, affecting road safety, traffic infrastructure, and expenses. The state has committed substantial funds to public transportation, notably through initiatives like Move Ahead Washington, allocating over $3 billion to transit projects over 16 years.  

15. Ohio 

Vehicles Per Mile: 85.07 

Ohio faces significant traffic congestion issues, costing drivers $5 billion annually in lost time and wasted fuel. Dayton has the least congestion among Ohio metro cities, with motorists spending 30 hours stuck in traffic annually, wasting 12 gallons of fuel, and costing $627 per commuter. However, cities like Cincinnati, Columbus, Cleveland, and Toledo experience higher congestion levels. About 31% of Ohio’s major roads are in poor condition, particularly in urban areas. Increased federal and state funding is crucial to address congestion and improve road safety in the state. 

14. Arizona 

Vehicles Per Mile: 85.19 

Arizona is one of the top congested states in America, leading to delays, increased costs, and safety concerns. In 2011, congestion costs were estimated at $16 per hour for personal travel and $88 per hour for trucks. Traffic infrastructure struggles to keep up with area growth, resulting in longer travel times and higher fuel consumption. To address these challenges, substantial financial investments have been made, including a $400 million commitment in 2022 and a $95 million federal grant in 2024 for the expansion of I-10. Governor Katie Hobbs announced additional state funding totaling $692 million, aiming to improve safety and conditions on the 26-mile stretch of I-10 within Arizona. 

13. Pennsylvania 

Vehicles Per Mile: 87.51 

Pennsylvania is recognized as one of the most congested states in the US, with notable traffic issues highlighted by the Annual Average Daily Traffic (AADT) data for 2022. The heavy traffic flow poses challenges to the state’s traffic infrastructure, increasing the risk of accidents and fatalities. 

12. Virginia 

Vehicles Per Mile: 95.59 

11. New York 

Vehicles Per Mile: 94.97 

10. Florida 

Vehicles Per Mile: 126.68 

Florida suffers from severe traffic congestion, leading to increased road accidents and fatalities. The economic cost of congestion in urban areas amounts to $5.2 billion, with drivers in Miami losing an average of $1,700 due to lost time. Strategies such as optimizing traffic signals, promoting transit use, and exploring technology solutions like self-driving cars are recommended to mitigate congestion and its financial impact. 

9. Maryland 

Vehicles Per Mile: 126.69 

In Maryland, congestion costs drivers an annual total of $5.8 billion. In the D.C. suburbs, drivers lose an average of 99 hours and $2,465 annually, while Baltimore-area drivers lose 59 hours and $1,371. Key congestion spots include the Capital Beltway and Interstate 270. Efforts to address this issue include federal funding for road improvements and enhancements to incident response systems and traffic signals by the Maryland Department of Transportation.

8. California 

Vehicles Per Mile: 127.20 

California, one of the most congested states in the US, faces significant challenges with road accidents and traffic infrastructure. In 2022, there were 216,366 traffic accidents resulting in 3,854 fatalities and 165,978 injuries, with rural roads accounting for 60% of fatal accidents and alcohol contributing to 38% of incidents, making California stand among the states that have a lot of traffic. Los Angeles reported the highest number of accidents and fatalities. From 2020 to 2021, total traffic fatalities increased by approximately 7.6%, reaching 4,285 deaths, with notable rises in alcohol-impaired driving fatalities (16%) and motorcycle fatalities (3%), including a 9% increase in deaths due to not wearing helmets in 2021. The economic cost of automobile crashes in the US is estimated at $242 billion, with California contributing around 10% of fatal crashes. 

7. Connecticut 

Vehicles Per Mile: 133.27 

Connecticut faces significant traffic congestion issues, particularly on Interstate 95 South from Westport through Greenwich, which is identified as the most congested traffic corridor in the USA. In 2022, police departments conducted 313,346 traffic stops in the state, marking a notable 39% decrease compared to 2019. 

6. Massachusetts 

Vehicles Per Mile: 137.27 

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Disclosure. None: The 20 Most Congested States in the US is originally published on Insider Monkey.