The Province of North Holland is working together with 11 other administrators on the blue wave project. The goal is to achieve better coordination between road and waterway users. Less inconvenience for road users by no longer lifting bridges during peak hours and less inconvenience for waterway users because each corridor will allow a guaranteed passage at certain times. For instance, in Haarlem, this means that when a ship leaves at time X, the ship will be able to pass all bridges in one corridor. To assist the Bridge Operator, the BMS was developed: an advisory tool that informs the bridge operator whether it would be wise to lift the bridge now or to wait. The tool considers, registered vessels, road congestion, any emergency services and public transport. For example, if the bus runs on time, the bridge may simply be lifted. But if the bus is already running late, the tool will allow the bus to cross over the bridge before the advice to lift is given. This is how smart mobility is used to find a better balance between different interests. The RiverGuide app facilitates this alignment. Skippers and Captains can register with bridges via the app. Much smarter than the classic VHF maritime mobile band. And the data from the app can again be used for optimisation. The Province of North Holland commissioned the BMS in May 2018. To optimally serve the interest of the clients, Iv-Infra will be responsible for the traffic management during the next two years: ensuring proper coordination and establishment of advice.