One must be very careful about knowingly putting juniors in a hazardous environment. As a matter of fact, I strongly suggest thorough knowledge of the child labor laws before allowing anyone under legal age to be involved in any hazardous environment. The liability and consequences can be extremely expensive.
they make sure us juniors are highly visible and in an area to where we can get outta the way if its to hazardous..they only put jrs on that job if all the cetified are strongly needed otherwie we r the ones getting tools off the truck an getting it ready for action!
Many times we are on our own with traffic, at least for the first few minutes after setting up at a scene or stabilizing a patient or whatever. We usually use an engine to block the lane we're working in. Recently, though, we had a truck lose its load on the highway and we routed traffic around the mess until it could be cleaned up. We were better equipped than the LEO's with cones and wands and vests, etc. It took about six of us and four officers. That was an exception to the usual road scenario.