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CFTE Glossary
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Habitat
Living environment of a species, that provides whatever that species needs for its survival, such as nutrients, water and living space.
Habitat fragmentation
Division of large tracts of natural habitat into smaller, disjunct parcels.
Head Start
A program of comprehensive services for economically disadvantaged preschool-age children. Services, including transportation, are provided by local Head Start agencies and are funded by the Administration for Children and Families, part of U.S. DHHS.
Headway
The time interval between transit revenue vehicles passing a specific location.
Heavy rail
An electric railway with the capacity for a "heavy" volume of traffic and characterized by exclusive rights-of-way, multi-car trains, high speed and rapid acceleration, sophisticated signaling and high-platform loading. Also, high-speed, passenger rail cars operating singly or in trains of two or more cars on fixed rails in separate rights-of-way from which all other vehicular and pedestrian traffic is excluded. Additionally, "Rapid rail" transit service using rail cars powered by electricity which is drawn from a third rail and usually operated on exclusive rights-of-way. It generally uses longer trains and has longer spacing between stations than light rail.
High-occupancy toll (HOT)
Toll or increased toll charge imposed upon vehicles which have less than the specified number of required passengers for a particular road or highway.
High-occupancy vehicle (HOV)
Vehicles that can carry two or more persons. Examples include buses, vans and carpools.
High-occupancy vehicle lane (HOV lane)
Exclusive road or travel lane limited to buses, vanpools and carpools on freeways, highways and city arterial streets.
High-speed rail
Rail transportation system with exclusive rights-of-way which serves densely traveled corridors at speeds of 124 miles per hour and greater.
Highway Trust Fund (U.S.)
The federal trust fund established by the Highway Revenue Act of 1956; this fund has two accounts -- the Highway Account and the Mass Transit Account. Trust fund revenues are derived from federal highway- user taxes and fees such as motor fuel taxes; trust fund uses and expenditures are determined by law.
HOT
High-occupancy toll
Hoteling
A type of telecommute for which an office space is designed for use on a shared, as-needed basis. Assigned workers check in and out of the office, using and then leaving behind its standard business tools and technologies.
Housing Cost Burden
Overpaying for housing, known as the housing cost burden, is defined by the California State Department of Housing and Community Development in terms of a percentage of the gross household income a household spends for housing including utilities. Thirty percent of gross household income is the standard affordability level. Severe burden occurs when households pay 50 percent or more of their gross income for housing.
Housing Element
A comprehensive assessment of current and projected housing needs for all economic segments of the community. It sets forth local housing policies and programs to implement those policies.
HOV
High-occupancy vehicle
HOV lane
High-occupancy vehicle lane
HSGT
High-speed ground transportation
Human-service transportation system
Transportation systems which provide service exclusively to clients of human-service agencies.
Hydrologic
Hydrology is the science dealing with the waters of the earth, their distribution on the surface and underground, and the cycle involving evaporation, precipitation, flow to the seas, etc.
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