Arterial
Arterials are generally considered major streets that move traffic across the city.   More specifically they form a continuous sub-network designed to feed limited access facilities and other roads.  Overall, they serve mobility functions around and through urban and community activity cores. 

Collector
Collectors are generally considered neighborhood streets that collect local street traffic, serving community and neighborhood activity cores.  More specifically a collector is a facility that distributes trips between local streets and the arterial network balancing the need for individual lot access and traffic mobility.  Collectors serve residential, commercial, and industrial areas by collecting the traffic generated and providing continuity between local roads and the rest of the system.

Connectivity
Connectivity are improvements to the overall city roadway network, including internal and adjacent site connections, which allows several routing choices that are easily comprehensible to pedestrians and automobiles.  Road systems with good connectivity help disperse traffic patterns, such as a traditional city street grid. 

Corridor
Corridor is a general term used most often to describe a major artery and its surrounding area, including side streets and parallel arteries.  Corridor studies are performed on major thoroughfares to determine the level of need for improvements in accommodating a multimode transportation system.

Level of Service
Level of Service is a description of the condition of a roadway segment, or other mode of transportation such as transit service, to handle traffic volume.  Generally, roadways or transportation areas are categorized from Level of Service "A", where there is little or no travel delay, to Level of Service "F", where roadway capacity is exceeded and characterized by long queue lines, back-ups, and stopped vehicles for long periods of times.  

Major Thoroughfare
Major Thoroughfares include all collectors, arterials, and limited access roads but do not include local roads.  Thoroughfares serve two purposes:  moving traffic between dispersed parts of the City, and providing public access to individual properties located on the thoroughfare.  This dual role of major thoroughfares is conflicting as the traffic movement function of thoroughfares can be compromised by the provision of access to individual properties. The Major Thoroughfare Plan was developed to balance these roles by recognizing both the rights of property owners to reasonable access and the public purpose of efficient traffic flow.

Multi-Modal
Multi-Modal is an interchangeable system of all forms of transportation, from pedestrian to inter-city passenger rail, which encourages alternatives to automobile commuting.  Includes seamless transfer points where multiple land-uses may locate, such as residential and retail mixed-use projects which reduce the need to make additional trips. 

Traffic Calming
Involves the creation of attractive design features to narrow travel lanes and regulate intersection traffic resulting in slower traffic speeds.  This device is frequently implemented in residential areas to ensure resident safety and community livability. Examples include: speed humps, bricking, landscaped medians, and roundabouts. 

Traffic Counts
Traffic counting is generally recording the number of cars passing through a specified intersection or driving a certain road on a given day.  Traffic Counts are used to determine if improvements are necessary to intersections and roadways to accommodate a multimode transportation system.

Transportation Concurrency Management
Transportation Concurrency Management is a program designed to guarantee Orlando’s transportation facilities are designed to accommodate imminent growth and development.

Transportation Demand Management 
Transportation Demand Management is a solution that relieves traffic congestion on highways and promotes transportation alternatives to reduce the reliance on single-occupant vehicles.  Includes carpooling, flexible work schedules, preferential parking, parking cash-outs, transit subsidies and telecommuting.