The main purpose of the study is to clarify the role and place of legal means in the mechanism of investment management. The paper deals with the problems of financing in the implementation of investment projects in the framework of public-private partnership, and examines the mechanism of coordination of public and private goals and interests in the implementation of projects. The methodology of the study was: system-structural approach, comparative legal method, functional method and method of interpretation. The main results of the study are as follows: based on the analysis of the application of the current transport and investment legislation, the conclusion is made about a certain imperfection of the implementation of the mechanism of public-private partnership in transport.