A wheelchair system includes one or more servers. A software application is provided by the server(s) to be installed on a computing device (such as a mobile phone) communicatively coupled with the server(s) through a telecommunications network. One or more user interfaces displayed on the computing device, using the software application, include a traffic navigation selector configured to receive a user selection indicating that a wheelchair operator is preparing to cross a street. In response to a selection of the traffic navigation selector the software application may: determine whether vehicles are nearby; notify the wheelchair operator when to cross the street; notify the wheelchair operator how much time is left to cross the street; visually record the wheelchair operator crossing the street; and determine, based on receipt of sensory input from computing device sensors and wheelchair sensors, whether an accident has occurred and, if so, notify emergency personal and family/friends.