So that 10 seconds to one minute of the time that you see workers at the highway, you come to the conclusion that there are 5 guys hired to do the work of one for an entire workday? Really? Moreover, your argument was about the time it takes for something to get built. That has nothing to do with labor at all. You are coming from it with an anti-union agenda. Unions have nothing to do with red-tape or studies.
Building and doing infrastructure work in an already developed urban area is so much more difficult than doing it in an undeveloped area. You have more safety concerns., traffic concerns, watershed concerns, environmental impact. That is why it takes so much longer. It really has very little or nothing to do with labor. You can build an entire small city from nothing than doing some infrastructure project in an existing city. Plus, you just have political concerns as well like not closing down a road for an extended period of time to get work done. There are so many factors. Yes, some red tape needs to be cut for sure. But the Unions aren't the cause of that red tape. As a matter of fact, they just want to work and get paid.