On Thursday, at around 10:00, an communications inter-op drill took place at the Strafford Train Station in Tredyffrin, Chester County. Agencies involved were the Chester County and Delaware County dispatch centers mobile units, Radnor Fire Co, Berwyn Fire Co, and Tredyffrin PD, among others. The drill similated a train derailment and explosion on the Amtrak/SEPTA rail line. The drill took place to test a new device known as "Gateway" which was designed to link the various communication systems together during a major incident. Chester County's LTR Multi-Net, Delaware County's Motorola conventional, and Montgomery County's Motorola TRS systems were linked together with this device.