DORA stands for "Door to Door Information for Passengers and Airports" and targets on seamless integration of air mobility in the overall urban and regional transport systems. Integrating real time data and incident information of both transport modes in one information system the DORA closes the information gap between air transport and landside transportation. The overall goal of the DORA project activities is to optimise and reduce the total travel time, taking into account origins and final destinations of the travels and make sure that even in case of land traffic disruptions and critical situations at the airports the passengers arrive at the airport in time to complete all necessary clearance procedures before entering the plane. The DORA system is based on two innovations: A cross-modal incident management and information system to ensure the accessibility of airports at all times. This system is based on the cooperation of all transport operators to manage disturbances in the airport bound public transport system and road traffic based on pre-defined action plans and information strategies. The second pillar is a multimodal mobile information service for air passengers. This DORA app helps passengers to plan their trip to the airport, to find the shortest way in the terminals and provides passengers with the trip recommendation on how to travel from the destination airport to their final destination. The third pillar is the exploring of technologies for time efficient procedures in the terminal. Special emphasis is put on detection of waiting times at check-ins or security checks and indoor routing and navigation technologies to improve the service quality in the terminal. DORA will be a seamless solution through considering scheduled and real time services of all flight connection and urban transport modes and terminal proceedings (luggage belt, security gate, departure gates), The system will integrate services for a door-to-door journey planning, booking and ticketing for landside transport with strategic compliancy (with static and dynamic control strategies) of operator and municipalities, as well as online trip monitoring.