The first step to this is to remove your current driveway, whether it is grass or gravel it needs to be cleared and there must be no gravel left. Once this is done you must mark out the area in which you wish to lay your new Asphalt driveway. Another idea so that there is no flooding or collapsing in your driveway is to have your selected area in a bit of a gradient, this is so that the water can run down the sides. The base where you are laying the asphalt must be completely dry before you start, if not let it sit over night so that you are sure. If need be you can build mouns so that everything is level.
Next step is t compact the soil as much as possible so that there are no clear crack to be seen, next is time to lay the ground with crushed rock, the type of crushed rock used is crucial to proper drainage. If your underlying soil is clay-based, you will need 20.3 cm of crushed rock, Then you must pack the sub soil into the crushed rock, it is recommended to leave this to sit for a while before laying the asphalt. Once it is done it is time to choose your asphalt size and thickness, different areas have different recommendations for thickness. Once you have chosen and laid it down you must then compact the asphalt, and treat the end so that they are at a 45 degree angle