Secure exit lane door

A method of providing a secure exit comprising:

• locating a first door at a first end of a corridor having a floor;
• locating a second door at a second end of the corridor;
• mounting a first sensor to detect an object on the floor;
• mounting a second sensor to detect an object in the corridor located somewhere in the corridor other than the floor;
• and
• operatively connecting a controller to the first and second doors and first and second sensors and configuring the controller to one of:
• a) turn off the second sensor when the first sensor detects an object on the floor and b) not react when the second sensor detects an object above the floor when the first sensor detects an object on the floor.

A door system comprising:

• a corridor sized to allow humans to move through the corridor, the corridor defined, at least in part by side walls and a floor, the corridor having a first end and a second end;
• a first sensor oriented to detect an object on the floor;
• a second sensor oriented to detect an object above the floor in the corridor;
• a controller;
• and
• an alarm system operatively connected to the controller for activating when signaled to do so by the controller,
• the first sensor operatively connected to the controller, and
• wherein the second sensor is operatively connected to the controller and the controller is configured to one of:
• a) turn off the second sensor when the first sensor detects an object on the floor and b) not respond when the second sensor detects an object above the floor when the first sensor detects an object on the floor.