Tunnel section automatic driving safety speed determination method based on support vector regression

The invention relates to a tunnel section automatic driving safety speed determination method based on support vector regression. The method comprises the following steps: S1, obtaining automatic driving sight distance related information, tunnel section design information and weather environment information; s2, the information obtained in the step S1 is utilized, a virtual test method is adopted to obtain the effective sight distance of tunnel section automatic driving, and an available sight distance database is constructed; s3, based on the available sight distance database constructed in the step S2, extracting automatic driving available sight distance characteristic parameters by adopting principal component analysis; s4, establishing an automatic driving available sight distance model based on a support vector machine regression method by using the automatic driving available sight distance characteristic parameters extracted in the step S3; and S5, based on the automatic driving available sight dista