Systems for Route Transportation Designation
Practically all the major highways in the United States are marked with route- designation signs which are shown on maps prepared for motorists. This route- designation system is usually separate and distinct from that used for highway- management purposes, and the two should not be confused. In sum, the route- designation scheme for the United States is as follows:
INTERSTATE ROUTES
A numbering system, consistent nation¬wide, developed by AASHTO. North-south trending routes have odd numbers, with numbers increasing from west to east. East-west trending routes have even numbers, with numbers increasing from south to north. Signs are reflectorized and in full colours red, white, and blue.
UNITED STATES HIGHWAY ROUTES.
A numbering system, reasonably consistent nationwide, that overlaps portions of the federal-aid and state highway systems. Odd and even numbers are for north south and east west tending routes, respectively, as with the Interstate System. However, the numbering be¬gins in the east and north rather than west and south. The sign shape resembles a shield.
STATE HIGHWAY ROUTES. A numbering system for routes of some continuity within individual states. Each state has adopted a distinctive shape or pattern for its sign; for example, the Pennsylvania route marker resembles a keystone. Similar numbering schemes also have been developed by some local agencies.
SPECIAL DESIGNATIONS. At times, freeways or toll roads are given special designations to identify them more clearly in the minds of motorists. Examples are the New York Thruway, the Will Rogers Turnpike in Oklahoma, and the San Bernardino Freeway near Los Angeles, California. Such designations are an aid to those driving straight through but may confuse others w'ho are looking for specific destinations along the route. A related problem is that of the motorist who, unfamiliar with the road, has trouble identifying an intended turnoff. One plan is to indicate each turnoff with the name of a nearby community; another is to number them consecutively, or in relation to the miles from some beginning point.
Title Post: Systems for Route Transportation Designation
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Rating: 100% based on 99998 ratings. 5 user reviews.
Author: aditya
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