If I am wrong then prove it. This is the statement which I have heard a few times already and a cursory search for "unions blocking better road repair technology" in ddg yields these articles which bolsters my argument:
Directly related: https://www.aei.org/economics/america-in-the-slow-lane-how-u...
Tangentially related:
https://uniontrack.com/blog/unions-and-automation
https://www.illinoispolicy.org/union-workers-more-likely-to-...