This is for Los Angeles County, California.
First and foremost, apologies if this is not the correct forum but this felt like it was the most relevant one to address my question.
Backstory: small fender-bender (no injury, minor damage) due to several cars having to quickly swerve and hit their brakes due to a lane closure (tree trimming). Several cars involved. Their method of closing the lane was nothing more than placing cones in the far lane; there is no other signage, warning, flags, etc. You're just driving along in rush hour traffic and, suddenly, a cone. So I primarily have two questions:
1) What's the best way to go about researching what signage (if any) is required for a lane closure? I'd assume there are specific laws and procedures involved for getting a permit to do this, but would it be state, county, city, etc? All of the above?
2) If there is, in fact, a requirement to place additional signs that was not complied with, could the contractor and/or city be held liable for damages (similar to potholes, etc.)?
Any guidance or other advice is much appreciated.