Abstract: The emission gap to achieve the net-zero target is huge. The highway sector has an important role to play in carbon emission reduction. There are increasing efforts in the highway sector to manage carbon. From a data science and technology perspective, this research reviewed the existing efforts of carbon data management within the highway value chain stakeholders and assessed them against the data trustworthiness criteria in four dimensions: data availability, data quality, data compatibility, and data security. Data availability and quality were still found to be the major issues with the current labourious and unreliable manual data collection. Some digital systems that are being developed still face the reliable data source issue. To address the issues of data trustworthiness and support the advanced carbon management purposes, this research proposes a digitalised carbon data management framework that can enhance the data trustworthiness with the aid of digital technologies. The up-to-date research progress in developing the fundamental carbon metadata structure will also be shared.