List of Denver RTD bus routes

The Regional Transportation District operates all fixed route public bus service (except university or mall shuttles) in the Denver, Colorado area.

These are the standard core routes of the system, making frequent stops and often running down the metropolitan area's busiest streets. The routes designated as "Crosstown" cross the central grid streets of Broadway or Ellsworth without servicing the downtown area.

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These routes generally complement the most utilized local routes, providing faster service by stopping at only major intersections or transfer points. Several routes are also covered only by limited buses, so as to provide quick access along relatively long distance lines.

These routes provide service between major suburban transit centers or park and ride lots and key destinations. Most services are designed for commuters and run only on weekdays. These lines feature limited stops in a manner similar to Ltd routes.

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These routes connect areas that are on opposing sides of the metropolitan area. They generally run as local lines around the two termini, then travel along freeways or major highways with no stops in the middle portions of the route. Express versions of regional routes run as limited lines through the two end portions of the route, then follow the same middle segment. Some routes provide service to rural areas, traveling along multi-line highways with limited stops.

These routes provide express bus service from major transfer points to Denver Int'l Airport.

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