US 12,073,719 B2
Protected turns
Brad Cross, McLeansboro, IL (US)
Assigned to STC, Inc., McLeansboro, IL (US)
Filed by STC, Inc., McLeansboro, IL (US)
Filed on Aug. 31, 2023, as Appl. No. 18/240,756.
Application 18/240,756 is a continuation of application No. 17/572,181, filed on Jan. 10, 2022, granted, now 11,756,421.
Application 17/572,181 is a continuation of application No. 16/810,166, filed on Mar. 5, 2020, granted, now 11,250,700, issued on Feb. 15, 2022.
Claims priority of provisional application 62/817,921, filed on Mar. 13, 2019.
Prior Publication US 2023/0410648 A1, Dec. 21, 2023
Int. Cl. G08G 1/087 (2006.01); G08G 1/00 (2006.01); G08G 1/01 (2006.01); G08G 7/02 (2006.01)
CPC G08G 1/087 (2013.01) [G08G 1/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A system for controlling traffic within a traffic grid, the system comprising:
a traffic grid including a first roadway and a second roadway, the second roadway crossing the first roadway at an intersection;
a first transit lane included within the first roadway,
a second transit lane included within the first roadway,
wherein traffic in the first transit lane and traffic in the second transit lane are travelling in the same direction; and
wherein traffic in the first transit lane turning a first direction through the intersection and onto the second roadway will intersect the route of traffic in the second transit lane traveling straight through the intersection;
a first signal light proximate to the intersection configured to control traffic in the first transit lane traveling into the intersection;
a second signal light proximate to the intersection configured to control traffic in the second transit lane traveling into the intersection, the first signal light and second signal light being controlled by a controller; and
a detector configured to detect the presence of a target vehicle within a detection zone in the first transit lane;
wherein the controller alters the first signal light and the second signal light from a first mode of operation where traffic in both the first transit lane and the second transit lane is instructed to proceed straight through the intersection to a second mode of operation where traffic in the first transit lane is instructed to turn the first direction and proceed straight into the intersection and traffic in the second transit lane is instructed to remain stopped if the target vehicle is detected by the detector within the detection zone.