Collector Streets

A. General Characteristics

Collectors are designed to provide a greater balance between mobility and land access within residential, commercial, and industrial areas. The makeup of a collector facility is largely dependent upon the density, size, and type of abutting developments.

Posted speed limits on collector facilities generally range between 25 and 35 mph. Traffic volume and capacity can range from 5,000 vehicles per day on a two-lane facility up to 20,000 vehicles per day on larger multi-lane facilities.

Emphasizing balance between mobility and access, a collector facility is designed to better accommodate bicycle and pedestrian activity while still serving the needs of the motoring public.

B. Definition Criteria

The following criteria are used in designating collector streets as part of the LUTP. The criteria are a combination of quantitative and subjective measures that are applied to both existing and future characteristics of collector streets. Not all of the criteria need to be met in designating a collector street, and some criteria carry more weight than others. The following criteria are listed in order of relative importance or weight:

  • Consists of a grid of streets generally spaced at ½ -mile intervals;
  • Serves as a locally significant street (accommodates trips of less than 5 miles distance between Denver neighborhoods, or between Downtown and central neighborhoods);
  • Provides connectivity between arterials (e.g. connects parallel north-south or east-west arterials) or between other collectors;
  • Provides connectivity between important neighborhood activity centers such as commercial areas, town centers, schools, parks and residential neighborhoods;
  • Accommodates existing or future average daily traffic volumes of 20,000 or less (individual segments may accommodate slightly higher);
  • Accommodates the local transit system or provides bus service at frequencies of 60 minutes or less during peak hours;
  • Operates as and is designated as a collector street in adjacent jurisdictions;
  • Accommodates speeds of 25 mph or greater;
  • Provides limited restrictions on driveways and other access points to adjacent land uses;
  • Provides traffic signals at major intersections and driveways, generally spaced at ¼- to 1/3-mile intervals;
  • Functions as a local or regional snow, truck, or emergency route;
  • Provides no more than 2-4 travel lanes; and
  • Serves all levels of land use density and intensity adjacent to the street.
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