A set of smart devices includes a first smart device physically placed at a first geolocation and a second smart device physically placed at a second geolocation. The first and second smart devices obtain their first and second current geolocations. The first smart device sends the first current geolocation and a first roadway status information indicating a start of the roadway to a mapping service over a wireless communications network, and the second smart device also sends the second current geolocation and a second roadway status information indicating an end of the roadway to the mapping service. The first and second roadway status information may further indicates that the roadway defined by the first and second current geolocations is a closed roadway or a detour. The mapping service may calculate routes based on the first and second geolocations and the first and second roadway status information.