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The mile-log system is used by a number of U.S. states to determine exit numbering on Interstate highways. With this method, each exit gets a number the same as the nearest milepost, rather than a sequential number. Exits that would end up with the same numbers get a letter suffix, such as A/B/C/D, or sometimes directional like N/S/E/W.
While some states started out in this manner (the federal government allowed each to choose), some states have changed after the fact, forcing confused motorists to adapt and many travellers to get lost. While it seems backward to many, especially since the U.S. is officially (but not yet in practice) metric, supporters claim that it is better suited for long-distance travelers who can determine the distance to their destination (but only within the same state), or their location in case of an emergency.
Detractors point out that it is better to "leave well enough alone" and keep the original system, and that it works strongly against metricationMetrication or metrification is the process of converting from the various other systems of units used throughout the world (especially the " Imperial" or " American" systems that derived from the United Kingdom), to the metric or SI (Systeme Internationa and is almost useless for visitors and tourists from other countries. Unfamiliar motorists often get off at the wrong exit ( i.e. old exit 5 versus new exit 5) or may think they have missed one, and it costs millionOne million (1 000 000) is one thousand thousand, or 106. Physical quantities can also be expressed using the SI prefix mega, when dealing with SI units. For example, 1 megawatt equals 1 000 000 Watts. The million is sometimes used in the English languages of dollarAlternate uses: Dollar (disambiguation The dollar is the name of the official currency in several countries, dependencies and other regions (see list below). It is represented by the symbol . The name is related to the historic currencies Tolar in Bohemias to change every sign in a state. It also places a burden on businessHistorically, the term business referred to activities or interests. By extension the word became (as recently as the 18th century) synonymous with an individual commercial enterprise. It has also taken on the more general meaning of a nexus of commerciales which must pay to reprint brochure s, especially if a state fails to provide an overlap or grace period .One state, New JerseyNew Jersey is a state of the United States of America and has the U. postal abbreviation of NJ . The state is named after the island of Jersey in the English Channel. The USS New Jersey one of the most decorated vessels in the United States Navy, was name, is somewhat confusing. Exits on the New Jersey TurnpikeThe New Jersey Turnpike is a toll road in New Jersey and is one of the most heavily traveled highways in the United States. Part of it forms part of the interstate highway system. Construction of the Turnpike from conceptualization to opening took an asto are numbered sequentially, but exits on all other controlled-access highways, including the Garden State Parkway, use the mile-log system. (The Turnpike has few exits and entrances; the highest number used is 18. Also, the new Brigantine Extension to the Atlantic City Expressway has so many exits in its 2-mile stretch [seven] that the South Jersey Transportation Authority uses letters to mark the exits.)
For many years, California did not number its freeway exits at all, either sequentially or with a mile-log system. In 2002, California began a transition to a mile-log system.