The SASIM Web App is a versatile tool for planning and comparing multimodal routes within the city of Munich. It helps users make informed decisions by highlighting the external costs associated with different transport modes, including private vehicles, shared mobility, and public transit. The app is part of the SASIM research project under the The Munich Cluster for the Future of Mobility in Metropolitan Regions (MCube) initiative.

Version: 1.1.0
Access the app: https://sasim.mcube-cluster.de/

Important Note:
While the code is open source, it is currently not possible to fully set up the project locally using the provided MVV EFA API, as this API is not publicly accessible. If you are interested in setting up the application for Munich or adapting it for another city, feel free to contact the SASIM team. Alternatively, you can replace the API with your local public transport provider’s API. The affected files can be found in the flask_app/controllers/efa_mvv/ directory.

• Backend: Flask (Python)
• Frontend: Flutter (Dart)
• Routing Engine: Local OpenTripPlanner (OTP) instance for all non-public transport routes.
• Geocoding: Komoot Photon API for search suggestions.
• Public Transit Routing: EFA MVV API (not publicly accessible).
• Mapping: OpenStreetMap with the FlutterMap library.

Follow these steps to set up and run the project locally:

1. Clone the Repository

   git clone <repository-url>
   cd sasim-web-app

2. Create an Environment File Add an .env file at the root of the project. Refer to the .env.example file in the flask_app folder.

3. Prepare the Frontend Navigate to the frontend directory:

   cd flutter_frontend/multimodal_routeplanner

   Generate localization files:

   flutter gen-l10n

   Build the web application:

   flutter build web --web-renderer canvaskit

4. Update Build Configuration Go to the build/web directory:

   cd build/web

   Modify the index.html file. Replace:

   <base href="/">

   with:

   <base href="/web/">

5. Start the Backend From the flask_app directory, launch the Flask server:

   python wsgi.py

The flask_app/db directory contains region-specific constants and MobiScore values. If you are setting up the project for a different city, these values can be recalculated based on the methodology outlined in the paper:
Ending the Myth of Mobility at Zero Costs: An External Cost Analysis
https://linkinghub.elsevier.com/retrieve/pii/S0739885922000713

Key partners include:

• Bavarian Ministry of Housing, Construction and Transport
• BMW Group
• MVV
• TUM
• Mobility Department of the City of Munich

• Design: Anelli Studio
• Illustrations: Chiara Vercesi
• Development: Gusztáv Ottrubay

This project relies on the following APIs and services:

• Komoot Photon API: For geocoding and search suggestions.
• EFA MVV API: For public transport routing.
• OpenStreetMap: Integrated via the FlutterMap library.

Please ensure compliance with the terms of use for each service.

This project is licensed under the MIT License. See the LICENSE file for more information.

For support or questions, please contact:
[email protected]