After 8 to 12 days, on average, symptoms of measles can begin. The period between measles transmission and the start of symptoms is called the incubation period.
Driving Laws In Greater Philadelphia. The maximum speed limit in Pennsylvania is 55 miles per hour unless posted otherwise. The maximum speed limit on interstate highways is posted after each interchange; on other highways the maximum speed limit is posted at approximately half-mile intervals.
On March 8, 2012, Pennsylvania enacted a no texting while driving ban. This law applies to all drivers, regardless of age. While there has been talk about changing the law to ban talking on a hand held device as well, as of now there has not been a law passed. What is not allowed while driving in Pennsylvania: 1  Using an Interactive Wireless Communication Device (IWCD) to read, write, or send a text message.