發送短信 : Simulation of an evacuation system in an urban community with residents and vehicles

 _____       ___      ____     __   __    _  _   
|  __ \\    / _ \\   |  _ \\   \ \\/ //  | \| || 
| |  \ ||  | / \ ||  | |_| ||   \ ` //   |  ' || 
| |__/ ||  | \_/ ||  | .  //     | ||    | .  || 
|_____//    \___//   |_|\_\\     |_||    |_|\_|| 
 -----`     `---`    `-` --`     `-`'    `-` -`