Island Radar Awarded Patent for Obstructed Crossing Detection and Notification

Island Radar's Tom Hilleary has been awarded a new Island Radar patent related to innovative technology that detects the presence of vehicles blocking or obstructing a railroad crossing, communicating important alert information to 9376129railroad personnel, central dispatch centers, and trains-on-approach. A frequent cause of train accidents involves trucks and other large vehicles that can "high-center" on a crossing island, posing a serious risk of accident, injury, and loss of property. Too often, vehicle operators focus attention on removing the vehicle from the crossing, neglecting the need to promptly notify the railroad organization of the situation. This innovative system triggers and conveys alert information to a variety of action-capable recipients.

A full copy of the recently granted patent may be downloaded from the US Patent and Trademark Office at:

Island Radar Awarded Patent for I2V Crossing Notification Using Positive Train Control

Island Radar's Tom Hilleary has been awarded a new Island Radar patent related to innovative technology that allows the railroad  industry's Positive Train Control infrastructure to communicate proactive messages to v9193367ehicles proximate to railroad crossings, using emerging ITS applications. A full copy of the recently granted patent may be downloaded from the US Patent and Trademark Office at:

Island Radar Awarded Two Key Patents

During the past year, Island Radar's Tom Hilleary has been awarded two Recent Island Radar Patents key patents that deal with radar-based detection in railroad applications. The full patent documents may be downloaded from the US PTO at the links provided below:

North Carolina and Norfolk Southern Railroad "Go Live"

MebaneHSRMotion2Norfolk Southern and the North Carolina DOT installed additional Island Radar VDR24 systems at four-quadrant gate crossings across the state of North Carolina, in a second phase of deployment for the State's high-speed rail system. These systems permit transition to dynamic exit gate operating mode without the need to excavate crossings for the installation of buried inductive detection loops.

Before, operating in a simplistic timed mode, exit gates would stay in their raised position for 17 to 20 seconds after the crossing warning system was activated.  This allowed -  and maybe even encouraged - impatient drivers to drive around entrance gates and into the activated crossing.

But now, both the entrance and exit gates descend almost simultaneously - closing off the crossing corridor as quickly as possible. That is, unless there is a vehicle partially in the crossing. Then, the Island Radar detection system provides instant presence detection information to the crossing controller so that the proper exit gate stays raised until the vehicle can safely exit the crossing.  

Island Radar Completes Train Detection Test

In May 2013, Island Radar completed its long-term evaluation of a radar-based, BNSF train detection application. The dual radar system was installed in Lamar Missouri, at a BNSF and MNA track crossover. The radar system detects trains and potenitally dropped cars in the track circuit dead zone surrounding the crossover. 

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FRA Publishes Radar Performance Report

In early 2013, the FRA published a technical report regarding an 18-month FRAReportCoverImage performance test of the Island Radar vehicle detection solution. Conducted under an agreement with the Illinois Commerce Commission, the system was installed at a BNSF crossing in Hinsdale Illinois which serves as the Four Quadrant Gate Demonstration Site for the state of Illinois. The report is available on the FRA website here.