page_title: Exit number
section_title: Sequential numbers
hierarchical_section_title: Exit number / Sequential numbers
caption_attribution_description: NJTP at exit 8.
context_page_description: An exit number is a number assigned to a road junction, usually an exit from a freeway. It is usually marked on the same sign as the destinations of the exit. In some countries, such as the United States, it is also marked on a sign in the gore.
  Exit numbers typically reset at political borders such as state lines.
  Some non-freeways use exit numbers. Typically these are rural roads built to expressway standards, and either only the actual exits are numbered, or the at-grade intersections are also numbered. An extreme case of this is in New York City, where the Grand Concourse and Linden Boulevard were given sequential numbers, one per intersection. A milder version of this has been recently used on the West Side Highway, also in New York, where only the major intersections are numbered. Another case is the Nanaimo Parkway in Nanaimo, British Columbia carrying Highway 19, where all exits are numbered though all except one are at-grade intersections. Some other intersections on Highway 19 outside Nanaimo are also given numbers.
  As a means of educating motorists, some state highway maps include a brief explanation of the exit numbering system on an inset.
context_section_description: Sequential exit numbering usually begins with exit 1 at the beginning of the road; each subsequent exit is given the next number. Letter suffixes are commonly used when new exits are added. For example, on the New York State Thruway, an exit was added between 21 and 22, and was given the number 21A. Subsequently, a new exit was added between 21 and 21A, leading to the sequence 21 - 21B - 21A - 22. In Florida, some new exits got the suffix C, so that if it had or acquired separate exits for the two directions, they would be 15CA and 15CB rather than 15AB. There are also occurrences of this happening on the New Jersey Turnpike; the original interchanges opened in 1951, with newer exits as recently as 1982. On the Baltimore Beltway, there is an exit 12B-C (MD 372), as well as 12A (US 1). There is also an exit 8A (I-895) and an exit 8 (MD 168).
  Some sequential exits are renumbered (remaining sequential) due to added exits. For instance, the Hutchinson River Parkway in New York was renumbered so that its northernmost exit, 27, became 30. However, the Merritt Parkway, which continued the Hutchinson's exit numbers in Connecticut, was not renumbered. This means the Route 120A interchange is numbered 27 in Connecticut and 30 in New York.
  The Atlantic City-Brigantine Connector in Atlantic City, New Jersey uses letters (without numbers) for its exits; it has many exits in a short distance, and the South Jersey Transportation Authority may have wanted to avoid numbers, as the Atlantic City Expressway's lowest numbers (mile-based) are in Atlantic City.
caption: The New Jersey Turnpike, with its unusual exit signage, displaying exit 8. This interchange was opened in 1951.
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