AASHTO - American Association of State Highway Transportation Officials

The AASHTO develops and publishes design standards and guidelines for such things as bridges, highways, urban roads and other transportation structures. One of its documents is, "Guide For Development of New Bicycle Facilities." This document is frequently referred to as "AASHTO". A more comprehensive AASHTO document is the "Green Book". It is the bible for road design, except it omits standards for bicycle friendly roadways. It is currently being revised to include more of a bicycle-friendly message.

Access

1. A bicyclist’s general ability to travel to destinations in his or her community. Because this generally requires using an infrastructure designed for automobiles it implies an evaluation of how bicycle-friendly the road infrastructure is.
2. Opportunities to get to and from a non-motorized facility.
3. The right to use Forest Service and DNR roads and trails, and similar unpaved backcountry roads and trails, for bicycling.

A wide variety of legislative and government rule-making mechanisms can threaten access.

Accidents

See "Crash".

Activity Center

A public or private facility which acts as a trip generator.

ADA -Americans with Disabilities Act

Requirements for ensuring equal opportunity for persons with disabilities in employment, State and local government services, public accommodations, commercial facilities, transportation and accessibility.

Alignment

The "line" which a facility follows.

Amenity (Factor)

Any design feature of a bicycle facility over and above what is deemed a basically safe design which induces greater use.  Example: weather protected parking and scenic view points.

Attractiveness

The scenic and aesthetic value of a facility.

BAC - Bicycle Advisory Committee or Bicycle Action Committee

Bicycle Advisory Committees are usually part of government, advising at the municipal, county or state level.  Bicycle Action Committee are usually part of non-governmental organizations -- activist clubs, coalitions, federations, etc.

Barriers To Travel

Barriers usually refers to natural (hills, lakes, rivers) or man-made (freeways, bridges without sidewalks, neighborhood traffic control devices) obstacles to through traffic or access.

Bicycle Access

The ability of bicyclists to have access to roads and trails. See"Access".

Bicycle Facility

Bicycle Facility—A general term denoting improvements and provisions made by public agencies to accommodate or encourage bicycling, including parking facilities (Class I, II, III), maps, and all bikeways (Class I, II, III, IV). See "Classification Of Bicycle Facilities" And "Classification Of Bicycle Parking".

Bicycle Transportation Specialist (Bts)

A person trained in the planning and implementing facilities and programs specifically for bicycle traffic and bicyclists.

Bikeway

Generic term for any of several classifications of bicycle facilities.

Bollards

Wood or metal posts that engineers like to put in the middle of bike paths to restrict access of motor vehicles.