Analysis of unsuccessful projects shows that the main reason is the violation of the time limits of the project. This implies the importance of project time management processes. It is known that measures aimed at reducing the time, as a rule, are associated with the occurrence of additional costs for performers. Naturally, the project manager must compensate for these costs, which occurs within the framework of the incentive system used. Given that engineering is a key area of the state economy, which largely determines its innovative development, it is very important to improve project management methods. It is shown how it is possible to carry out the development of a group incentive system aimed at ensuring a given value for reducing the duration of work. In this case, all the work, the duration of which must be reduced, is divided into groups and each such group has its own individual individual incentive system for all the works of this group. Naturally, such an incentive system is more expensive than an individual, but less than a universal one. The problem arises of designing group incentive systems that minimize the costs allocated to these goals.