Page 232 - TransportationPlanUsetsGuide

Deficiency – A performance, design or operational constraint that limits travel by a given mode.

Deficiency area – A location where certain transportation system elements (usually referring to roadways)
are expected to exceed acceptable performance measures and no appropriate feasible solution has been
identified. Deficiency areas are identified through evaluation of future travel conditions based upon the proj-
ects identified the TSP. Additional strategies to address the movement of people and goods in these areas
will be approached on a case by case basis.

Development review – The process of reviewing a proposed development action for conformance with the
county’s Community Development Code (CDC) and the applicable standards and requirements of the Com-
prehensive Plan as specified by the CDC.

Director – The Director of Washington County’s Department of Land Use & Transportation.

Environmental justice (EJ) populations – People living in poverty, people with low income as determined annually
by the U.S. Department of Health and Human Services Low Income Index, including people of color, elderly, chil-
dren, people with disabilities, and other populations protected by Title VI and related nondiscrimination statutes.

Essential destinations – Locations where people typically go to meet basic needs, including grocery stores,
ADOPTED TEXT Functional classification – A mechanism for classifying roadways according to the function they perform
schools, hospitals, medical centers and social service providers.

in the transportation system. Classifications typically range from Arterials, which are intended to facilitate
relatively high speed traffic over long distances, to Local Streets, which facilitate access to properties. When
properly combined, roadways with different functional classifications provide a system that meets both the
access and mobility needs of the communities it serves.

Gap – Refers to a missing link or barrier in the transportation network for any mode where a connection
would otherwise be expected to exist. A gap functionally prohibits travel or makes it significantly more difficult
or less desirable to travel in that location.

High capacity transit (HCT) – A form of public transit that carries high volumes of passengers quickly and ef-
ficiently from one place to another. Other defining characteristics of HCT service include the ability to bypass
traffic and avoid delay by operating in exclusive or semi-exclusive rights-of-way, faster overall travel speeds
due to wide station spacing, frequent service, transit priority street and signal treatments, and premium
station and passenger amenities. The transit modes most commonly associated with high capacity transit
include light rail transit, bus rapid transit, rapid streetcar and commuter rail.

High-occupancy vehicle (HOV) – A vehicle that is carrying two or more persons, including the driver. An HOV
could be a carpool, vanpool, transit bus, private charter bus, or any other vehicle that meets the minimum oc-
cupancy requirements of the specific facility. Some jurisdictions have established HOV lanes on freeways, where
only vehicles with two or more persons are allowed to occupy the lane during designated hours or at all times.

Intelligent Transportation System – The application of advanced technologies and proven management tech-
niques to solve transportation problems, enhance safety, provide services to travelers and assist transporta-
tion system operators in implementing suitable management strategies. Intelligent Transportation Systems
focus on increasing the efficiency of existing transportation infrastructure.

212 APPENDICES
Effective November 27, 2015 • Updated December, 15 2016