关键词: 智慧交通, 数据安全, 数据资产识别, 数据分类分级, 风险评估, 风险等级

Abstract: The transportation information system is not only a critical component of the national key information infrastructure, but also an important industry of the 2+8+N system, in which is crucial to the nation’s economy and people’s livelihood. With the continuous advancement of smart transportation construction, the volume of traffic data is growing rapidly. The position of data as a production factor highlights its importance and value, and also induces higher demands for data security. The transportation industry pays close attention to data security, and based on national policies, laws, regulations, and standards, the competent transportation authorities have issued a series of industry standards and regulations to guide the security of transportation data. However, the transportation industry covers a wide range of business areas, and its data has characteristics such as multisource, heterogeneity, partiality, spatiotemporal correlation, asynchronicity, information sparsity, and concurrency. Moreover, the data has a high degree of mobility, and the operational conditions and flow are complex, making data surveillance a large range and great difficulty, which brings a series of challenges to the protection of data security. Based on existing laws, regulations, and standards, and deeply integrating the characteristics of transportation industry data, this research on the data security risk assessment system provides a reference for the construction of transportation data security protection.

Key words: smart transportation, data security, data asset identification, data classification and grading, risk assessment, risk level