IntroductionThe research will apply digital twins to explore strategies that promote the so-called 15-minute city. Different scenarios related to sustainable urban mobility plans, as well as new mobility options, will be formulated, simulated inside the digital twin, and evaluated through living labs. These will enable a continuous feedback loop between citizens and the digital twin framework, promoting active citizen engagement, which is a crucial part of the 15-minute city.

Introduction| Transportation is a field where modeling and simulation play a significant role and is transitioning to be more data-driven and AI enhanced. With enhancing the networking with the RISE Digital Twin team and other actors at KTH interested in Digital Twin concepts, this project will pearhead the development and implementation of a comprehensive technical roadmap for cooperative DT project.Main tasks:| explore studies and practices for digital twins in transportation| develop the roadmap for implementing digital twins for transport systems in cities (sensing, communication, data management, data analysis, and visualization)| demonstrate the digital twin model for public transport systems in Stockholm using passive collection data. | Organize workshops to facilitate networking and knowledge in both industry and academic.

Introduction:| The Pay-as-you-speed principle establishes a connection between financial reward and the recorded behavior of the vehicle in terms of speed, which is also one of the EU's new vehicle safety requirements after 2022. | A pilot PAYS program from 2017 to 2021 by Folksam provides driving behavior and car crash data to uncover the statistical relations between PAYS and road safety.Main research questions:| How could PAYS service change driving behavior and could it be a game-changer of road safety by reducing the severity and risk of car crashes?

Introduction:| Kista Digital Twin enables the monitoring, analysis, and optimization of real-world assets and processes by fusing the physical and digital worlds to produce a virtual picture of the living environment. The digital twin model's traffic layer combines data from sensors and model output to depict the circulation system's on-time status.Main Task:| Digital road system building with standardized information storage| Traffic simulation with OD pair data from sensors| Pipeline and workflow design among data collection, simulation and visualization modules

Introduction:| Being supported by Senseable Stockholm lab, cooperating with MIT, SC, RISE and other associations and companies the project aims to build a collaborative decision making platform in Kista by using an integrated digital twin model. The 4D interface with time line and varied layers representing different assets will ideally be interactive in real-time. Main Task:| Use multi-class and multi-resource real-time traffic data to formulate the real-time transport simulation and forecast future situation under expected scenarios| Realize the interaction between the traffic modeling, simulation and the digital twin

Ecology and environment analysis