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1. US20220003562 - ROUTE SELECTION USING CORRECTION FACTORS INDICATING PHASE INTERRUPTIBLE TRAFFIC SIGNALS

Office
United States of America
Application Number 16918522
Application Date 01.07.2020
Publication Number 20220003562
Publication Date 06.01.2022
Publication Kind A1
IPC
G01C 21/34
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
26specially adapted for navigation in a road network
34Route searching; Route guidance
G01C 21/36
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
26specially adapted for navigation in a road network
34Route searching; Route guidance
36Input/output arrangements for on-board computers
G08G 1/082
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
07Controlling traffic signals
081Plural intersections under common control
082Controlling the time between beginning of the same phase of a cycle at adjacent intersections
G08G 1/087
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
07Controlling traffic signals
087Override of traffic control, e.g. by signal transmitted by an emergency vehicle
G08G 1/01
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
01Detecting movement of traffic to be counted or controlled
CPC
G01C 21/3492
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
26specially adapted for navigation in a road network
34Route searching; Route guidance
3453Special cost functions, i.e. other than distance or default speed limit of road segments
3492employing speed data or traffic data, e.g. real-time or historical
G01C 21/3461
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
26specially adapted for navigation in a road network
34Route searching; Route guidance
3453Special cost functions, i.e. other than distance or default speed limit of road segments
3461Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types, segments such as motorways, toll roads, ferries
G08G 1/0137
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
01Detecting movement of traffic to be counted or controlled
0104Measuring and analyzing of parameters relative to traffic conditions
0137for specific applications
G08G 1/082
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
07Controlling traffic signals
081Plural intersections under common control
082Controlling the time between beginning of the same phase of a cycle at adjacent intersections
G08G 1/087
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
07Controlling traffic signals
087Override of traffic control, e.g. by signal transmitted by an emergency vehicle
G01C 21/3667
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
26specially adapted for navigation in a road network
34Route searching; Route guidance
36Input/output arrangements for on-board computers
3667Display of a road map
Applicants Global Traffic Technologies, LLC
Inventors Chad Mack
Gayathri Natesan
Title
(EN) ROUTE SELECTION USING CORRECTION FACTORS INDICATING PHASE INTERRUPTIBLE TRAFFIC SIGNALS
Abstract
(EN)

Disclosed approaches for selecting a travel route involve considering phase interruptibility of traffic signals on alternative routes. Multiple alternative routes are determined in response to a request for a route. Information describing each route specifies a set of road segments, a set of intersections, and estimated travel times on the road segments. For each road segment that connects to an intersection having a phase-interruptible traffic signal, the estimated travel time on the segment is reduced based on a correction factor associated with the intersection. Estimated travel times on the alternative routes are determined based on the reduced estimated travel times on the segments. One or more of the alternative routes are displayed, including a visual indication of the route having the least estimated travel time.


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