Barnes dance

signal phase that stops vehicular manoeuvres and allows pedestrian manoeuvres to exclusively occur across the intersection including diagonally moving between corners
NOTE 1 to entry: Also referred to as a scramble, or “X” crossing. The term refers to Henry Barnes, a deceased traffic engineer.

signal phase that stops vehicular manoeuvres and allows pedestrian manoeuvres to exclusively occur across the intersection including diagonally moving between corners
NOTE 1 to entry: Also referred to as a scramble, or “X” crossing. The term refers to Henry Barnes, a deceased traffic engineer.

CSM

Cooperative Speed Management

FSP

freight signal priority

interval sequence

order of appearance of signal indications during successive periods of a traffic signal cycle

order of appearance of signal indications during successive periods of a traffic signal cycle

lane-use control signal

signal face displaying signal indications to permit or prohibit the use of specific lanes of a roadway or to indicate the impending prohibition of such use
NOTE 1 to entry: Typically, these are arrow displays of varying colours.
NOTE 2 to entry: This document does not attempt to use signal colours/indications to reflect the allowed vehicle operation, rather, the permitted movements are…

signal face displaying signal indications to permit or prohibit the use of specific lanes of a roadway or to indicate the impending prohibition of such use
NOTE 1 to entry: Typically, these are arrow displays of varying colours.
NOTE 2 to entry: This document does not attempt to use signal colours/indications to reflect the allowed vehicle operation, rather, the permitted movements are indicated and the state of the movement as explained later herein. Each region has unique mechanisms for using the display signals to indicate the movement(s) allowed.

phase; interval; traffic signal phase

part of a traffic signal cycle during which, signal indications are stable and do not change
NOTE 1 to entry: In the SPaT message, the current timing value for the remaining interval time estimate, as well as the anticipated interval for yellow change (clearance) interval, is provided for each lane.
NOTE 2 to entry: Because signal interval times commonly change based on triggering events…

part of a traffic signal cycle during which, signal indications are stable and do not change
NOTE 1 to entry: In the SPaT message, the current timing value for the remaining interval time estimate, as well as the anticipated interval for yellow change (clearance) interval, is provided for each lane.
NOTE 2 to entry: Because signal interval times commonly change based on triggering events in many types of signalling systems, the value provided in the SPaT message may represent a minimal value that is extended and updated as the message is re-transmitted in real time.

TSP

public transport signal priority

signal control zone

geo-physical area of an intersection used for an approaching vehicle to request a pre-empt or priority request of a traffic signal

geo-physical area of an intersection used for an approaching vehicle to request a pre-empt or priority request of a traffic signal

signal group

set of traffic signals providing a signal indication that governs the vehicle/pedestrian/bicycle manoeuvres possible for a set of one or more lanes

set of traffic signals providing a signal indication that governs the vehicle/pedestrian/bicycle manoeuvres possible for a set of one or more lanes

signal indication

illumination of a signal lens or equivalent device

illumination of a signal lens or equivalent device

traffic signal phase overload

proceed manoeuvre that has been terminated while demand for the manoeuvre continues
NOTE 1 to entry: Repeated phase overloads indicate that the signal phase timing is not adequate to satisfy the demand.

proceed manoeuvre that has been terminated while demand for the manoeuvre continues
NOTE 1 to entry: Repeated phase overloads indicate that the signal phase timing is not adequate to satisfy the demand.