oneTRANSPORT aims to make transport more user friendly and accessible by deploying the world's first open and scalable platform enabling multi-modal & multi-system transport integration across Local Authorities. Our long-term vision is the international integration of multiple sectors with transport. We are creating an open and self-sustainable transport data marketplace that uses the recently published one M2M global standard. oneTRANSPORT focuses on integrating modes & systems from 4 contiguous counties. Functionality is demonstrated with a multi-vendor exemplar application giving transport predictions & travel recommendations. With the Innovate UK endorsement, our platform will allow LAs to open & trade their data assets, create jobs, stimulate SMEs & economic growth, while reducing costs & driving end-user behavioural change. oneTRANSPORT will complete the value chain from data generation to traveller, enabling new feedback loops, end-user value & operational benefits. By proof-by-existence we will show better transport network use, commercial viability, unlocking new markets & funding streams for transport, first in the UK and then beyond.