Interstate 45 (I-45) is a major Interstate Highway located entirely within the U.S. state of Texas. While most primary Interstate routes which have numbers ending in "5" are cross-country north–south routes, I-45 is comparatively short, with the entire route located within Texas. Additionally, it has the shortest length of all the primary Interstates that have numbers ending in a "5". It connects the cities of Dallas and Houston, continuing southeast from Houston to Galveston over the Galveston Causeway to the Gulf of Mexico.
A frontage road is a local road running parallel to a higher-speed, limited-access road. A frontage road is often used to provide access to private driveways, shops, houses, industries or farms. Where parallel high-speed roads are provided as part of a major highway, these are also known as local lanes. Sometimes a similar arrangement is used for city roads; for example, the collector portion of Commonwealth Avenue in Boston, Massachusetts, is known as a carriage road.
Route 710, consisting of the non-contiguous segments of State Route 710 (SR 710) and Interstate 710 (I-710), is a major north–south state highway and auxiliary Interstate Highway in the Los Angeles metropolitan area of the U.S. state of California. Also called the Los Angeles River Freeway prior to November 18, 1954, the highway was initially planned to connect Long Beach and Pasadena, but a gap in the route exists from Alhambra to Pasadena through South Pasadena due to community opposition to its construction.
The Ventura Freeway is a freeway in southern California, United States, that runs from the Santa Barbara/Ventura county line to Pasadena in Los Angeles County. It is the principal east–west route through Ventura County and in the southern San Fernando Valley in Los Angeles County. From the Santa Barbara County line to its intersection with the Hollywood Freeway in the southeastern San Fernando Valley in Los Angeles, it is signed as U.S. Route 101 (US 101), which was built in the late 1950s and opened on April 5, 1960. The segments from the Santa Barbara County line to Sea Cliff, and from Solimar Beach to Oxnard, are also concurrent with State Route 1 (SR 1), although no signs mention SR 1 there. East of the Hollywood Freeway intersection, the Ventura Freeway is signed as State Route 134 (SR 134), which was built by 1971.
Route 34 is a primary state highway in the U.S. state of Connecticut. Route 34 is 21.88 miles (35.21 km) long, and extends from Newtown near I-84 to Route 10 in New Haven. The highways connects the New Haven and Danbury areas via the Lower Naugatuck River Valley. The portion of the route between New Haven and Derby was an early toll road known as the Derby Turnpike. It formerly ran through downtown New Haven on the Oak Street Connector until the early 2020s.
Interstate 676 (I-676) is an Interstate Highway that serves as a major thoroughfare through Center City Philadelphia, where it is known as the Vine Street Expressway, and Camden, New Jersey, where it is known as the northern segment of the North–South Freeway, as well as the Martin Luther King Jr. Memorial Highway in honor of civil rights leader Martin Luther King Jr. Its western terminus is at I-76 in Philadelphia near the Philadelphia Museum of Art and Fairmount Park. From there, it heads east and is then routed on surface streets near Franklin Square and Independence National Historical Park, home of the Liberty Bell, before crossing the Delaware River on the Benjamin Franklin Bridge. On the New Jersey side of the bridge, the highway heads south to its southern terminus at I-76 in Gloucester City near the Walt Whitman Bridge. Between the western terminus and downtown Camden, I-676 is concurrent with U.S. Route 30 (US 30).
A vast network of interconnected freeways in the megaregion of Southern California serves a population of over 23 million people. The Master Plan of Metropolitan Los Angeles Freeways was adopted by the Regional Planning Commission in 1947 and construction began in the early 1950s. The plan hit opposition and funding limitations in the 1970s, and by 2004, only some 61% of the original planned network had been completed.
Route 15 is a state highway in the U.S. state of Connecticut that runs 83.53 miles (134.43 km) from a connection with New York's Hutchinson River Parkway in Greenwich, Connecticut, to its northern terminus intersecting with Interstate 84 (I-84) in East Hartford, Connecticut. Route 15 consists of four distinct sections: the Merritt Parkway, the Wilbur Cross Parkway, most of the Berlin Turnpike, and part of the Wilbur Cross Highway. The unified designation was applied to these separate highways in 1948 to provide a continuous through route from New York to Massachusetts. The parkway section of Route 15 is often referred to locally as "The Merritt".
State Route 59 is an east–west state highway in the U.S. state of Ohio, serving the Akron metropolitan area. The western terminus of State Route 59 is in downtown Akron at a partial interchange with the Interstate 76/Interstate 77 concurrency, and the eastern terminus is at State Route 5, 0.5 miles (0.80 km) east of Ravenna. The route is approximately 23 miles (37 km) long and was certified in 1969 over what had previously been part of SR 5. It serves as a major or as the primary east–west roadway for the cities of Cuyahoga Falls, Kent, Ravenna, and Stow, the village of Silver Lake, and Franklin and Ravenna Townships.
Interstate 170 (I-170) was the designation for a 2.3-mile (3.7 km) freeway in Baltimore, Maryland, that currently carries U.S. Route 40 (US 40). The freeway was originally planned to be the eastern terminus of I-70 and, later, a link between I-70 and the west side of Downtown Baltimore. However, after the Baltimore portion of I-70 was canceled due to community opposition, the freeway was left disconnected from the Interstate system and its Interstate designation rescinded. Local citizens and environmental groups have given the freeway nicknames of "The Highway to Nowhere" and "The Ditch", the latter owing to its mostly below-grade construction; other names include the "Westside Freeway" and the "Franklin–Mulberry Expressway", both referring to its location in the city. Growing support for the freeway's removal has occurred over the last several years.
New York State Route 27 (NY 27) is a 120.58-mile (194.05 km) long state highway that runs east–west from Interstate 278 (I-278) in the New York City borough of Brooklyn to Montauk Point State Park on Long Island, New York. Its two most prominent components are Sunrise Highway and Montauk Highway, the latter of which includes the Montauk Point State Parkway. NY 27 acts as the primary east–west highway on southern Long Island east of the interchange with the Heckscher State Parkway in Islip Terrace. The entire route in Suffolk, Nassau, and Queens counties were designated by the New York State Senate as the POW/MIA Memorial Highway. The highway gives access to every town on the South Shore. NY 27 is the easternmost state route in the state of New York, as well as the longest highway on Long Island.
Spur 366, also named the Woodall Rodgers Freeway, is a freeway that connects Beckley Avenue and Singleton Boulevard in West Dallas to Interstate 35E and U.S. Highway 75 in central Dallas, Texas. The highway, as part of the downtown freeway loop, also serves as a dividing line between downtown Dallas on the south and the Uptown and Victory Park neighborhoods on the north.
Central Expressway is a north–south highway in the Dallas-Fort Worth Metroplex in Texas (USA) and surrounding areas. The best-known section is the North Central Expressway, a name for a freeway section of U.S. Highway 75 between downtown Dallas and Van Alstyne, Texas. The southern terminus is south of the Woodall Rodgers Freeway at exit 284C of "hidden" Interstate 345. From there, Central Expressway becomes the South Central Expressway, the northernmost portion of which was renamed César Chávez Boulevard on April 9, 2010.
Route 58 is a former state highway in the city of Newark, New Jersey and nearby town of Harrison, New Jersey. The highway ran from Orange and Hecker Streets in Newark, eastbound as a four-lane freeway across the William A. Stickel Memorial Bridge to Harrison, where it terminated at an intersection with County Route 508. The route originates as an alignment of Route 25A, a suffixed spur designated in 1939 of State Highway Route 25. The route was rechristened as Route 58 in the 1953 state highway renumbering. The highway was constructed into Interstate 280 in the 1950s, and the route persisted internally until the 1990s, when it was finally removed as a designation. A stub alignment of Route 58 remains near Hecker and Orange Streets.
Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running in a general east–west compass direction for 111.57 miles (179.55 km) in Connecticut, from the New York state line to the Rhode Island state line. I-95 from Greenwich to East Lyme is part of the Connecticut Turnpike, during which it passes through the major cities of Stamford, Bridgeport, and New Haven. After leaving the turnpike in East Lyme, I-95 is known as the Jewish War Veterans Memorial Highway and passes through New London, Groton, and Mystic, before exiting the state through North Stonington at the Rhode Island border and goes on.
U.S. Highway 90 Business is a business route of U.S. Highway 90 located in and near New Orleans, Louisiana. It runs 14.25 miles (22.93 km) in a general east–west direction from US 90 in Avondale to a junction with Interstate 10 (I-10) and US 90 in the New Orleans Central Business District.
U.S. Route 1 (US 1) is a major north–south U.S. Route, extending from Key West, Florida, in the south to Fort Kent, Maine, at the Canada–United States border in the north. In the U.S. state of Pennsylvania, US 1 runs for 81 miles (130 km) from the Maryland state line near Nottingham northeast to the New Jersey state line at the Delaware River in Morrisville, through the southeastern portion of the state. The route runs southwest to northeast and serves as a major arterial road through the city of Philadelphia and for many of the suburbs in the Delaware Valley metropolitan area. South of Philadelphia, the road mostly follows the alignment of the Baltimore Pike. Within Philadelphia, it mostly follows Roosevelt Boulevard. North of Philadelphia, US 1 parallels the route of the Lincoln Highway. Several portions of US 1 in Pennsylvania are freeways, including from near the Maryland state line to Kennett Square, the bypass of Media, the concurrency with Interstate 76 and the Roosevelt Expressway in Philadelphia, and between Bensalem Township and the New Jersey state line.
U.S. Route 5 (US 5), a north–south United States Numbered Highway that is generally paralleled by Interstate 91 (I-91), begins at the city of New Haven in Connecticut and heads north through western Massachusetts and eastern Vermont to the international border with Canada. Within Connecticut, US 5 proceeds north from New Haven and passes through Meriden and Hartford toward Springfield, Massachusetts.
Highway revolts have occurred in cities and regions across the United States. In many cities, there remain unused highways, abruptly terminating freeway alignments, and short stretches of freeway in the middle of nowhere, all of which are evidence of larger projects which were never completed. In some instances, freeway revolts have led to the eventual removal or relocation of freeways that had been built.
I-91 / I-95 in New Haven 
