Choker Course for Asphalt Pavement

[RW11]

I have an existing pervious concrete parking lot project that the client is asking to replace with conventional asphalt. I need to utilize the stone base (ASTM #4) for storm water management. I am looking for some ideas as to if a choker course is needed for the asphalt and/or paving equipment in order to provide sufficient stability. NAPA makes reference that the choker course is optional (for pervious asphalt installations). Would this also hold true for conventional asphalt?

 

[Ron]

If you use conventional asphalt, how does the water get to the reservoir course?

 

[RW11]

Runoff will be conveyed via trench drains and perforated piping.