Integrated Roadways wants to revolutionize street and highway construction. Some people fiddle with their car radio or guzzle coffee during their morning commutes. Tim Sylvester used his to come up with a company that could change how roads are built in the United States. Sylvester is the founder of Integrated Roadways, a local startup that sells and oversees the installation of precast, factory-made slabs of pavement. Construction crews can slot…