The deck area would most likley give the PVC additional protection, however, in a driveway area PVC or RMC should have additional protection, as Hal, noted the installation of a gutter, if you can find one is good. I like to use a guard post or curb in front of the pipe, yes this does increase the cost of the job, but at least suggest the additional protection, and let them refuse it.
Most of the time, we forget to look at other hazards that may exist.
