How will reasonable visitation work for my case ?

"Reasonable times, reasonable notice," usually means that the non custodial parent needs to contact the custodial parent and request when they want to see the child. The custodial parent has "veto power," over the request, if the request is not reasonable (usually within 24 hours) or they have plans. You can't object every time the parent requests placement or that would be considered interference and possibly subject to contempt of court. It is also "traditional" that the visiting parent do the pick up and drop offs. The visiting parent is ordinarily allowed to take the child to their home for placement, whether overnights or not. It sounds like your agreement or court orders is fairly generic and doesn't spell out who does the pick up or drop offs, or because you live 90 minutes apart, where does the visiitation take place. Unless you and the ofather can work those details out on your own, you may want to consider going back to court to have some more specific details added to the court orders to avoid ongoing conflicts over dad's visitation  with the children.