In order to use this Alexa Skill, you must first use either use an app like PAT Track that displays the bus stop numbers or visit http://truetime.portauthority.org and find out the bus stop numbers that are closest to you. If you would like step by step instructions to do so, please visit tinyurl.com/AlexaPittsburghBusTracker.
After you have determined the bus routes and bus stop numbers that you would like to track, you must say: "Alexa, ask Pittsburgh Bus Tracker, when is the next {bus route} arriving at bus stop number {bus stop number}?" for each bus route and bus stop that you want to track. You will only need to do this once for each bus route and bus stop you track.