A Guidebook on Transit-Supportive Roadway Strategies (2016) / Chapter Skim
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Pages 188-194
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From page 188... ...
188 This glossary contains transit, traffic engineering, and traffic signal terminology used in this guidebook or that might be used during the course of implementing a transit-supportive roadway strategy. Definitions of the strategies used in this guidebook are provided in Section 2.2 and repeated in the individual strategy write-ups in the toolbox chapters (Chapters 5 through 8)
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From page 189... ...
Glossary 189 capacity -- the maximum sustainable hourly flow rate at which persons or vehicles reasonably can be expected to traverse a point or a uniform section of a lane or roadway during a given time period under prevailing roadway, environmental, traffic, and control conditions. central business district (CBD)
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From page 190... ...
190 A Guidebook on Transit-Supportive Roadway Strategies display (head, signal group) -- a combination of indications (e.g., red, yellow, green, green arrow, audible)
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From page 191... ...
Glossary 191 leading left turn -- a left-turn phase that occurs at the start of service to an intersection approach. leading pedestrian interval -- a pedestrian interval option that starts a few seconds before the adjacent through vehicular phase, thus allowing pedestrians to establish a presence in the crosswalk and thereby reducing conflicts with turning vehicles.
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From page 192... ...
192 A Guidebook on Transit-Supportive Roadway Strategies overlap -- a timing process that provides a way to operate a particular movement with one or more phases. It is a separate output that can use special logic to improve operations.
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From page 193... ...
Glossary 193 quality of service -- the overall measured or perceived quality of transportation service from the user's or passenger's point of view rather than from the operating agency's point of view. queue -- a line of vehicles, bicycles, or persons waiting to be served due to traffic control, a bottleneck, or other causes.
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From page 194... ...
194 A Guidebook on Transit-Supportive Roadway Strategies transit signal preemption -- the transfer of normal operation of a traffic signal to a special control mode serving a transit vehicle. transit signal priority -- adjustments to traffic signal timing to provide more usable green time to transit vehicles.
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