Pop quiz: What is the most common street name in the United States? From town to town, and community to community, street names repeat, and that can create a problem for emergency responders.

The answer to the pop quiz: Second Street, followed by Third Street, First Street, and Fourth Street. First Street would be the leader, but so many towns changed their First Street to Main Street that it diluted the pool.

Now, why would we ask this question? It's become a challenge for 911 and emergency response. In Allegheny County alone, there are 130 municipalities, and plenty of repeated street names.

Centralized 911 serves multiple communities

Having the same street names was no big deal in days gone by. For instance, Thompson Run Road is used in Ross Township, Penn Hills, and West Mifflin.

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