Operating a host vehicle is described as including receiving remote vehicle information indicating a geospatial state and a kinematic state for a remote vehicle, identifying host vehicle information indicating a geospatial state and a kinematic state for the host vehicle, determining a converging time to a converging location within a vehicle transportation network based on the remote vehicle information and the host vehicle information, identifying a first threshold at which a fixed deceleration of the host vehicle to the converging location is achieved using a reaction delay of an operator of the host vehicle, wherein the first threshold is a step-wise function based on the kinematic state of the host vehicle, and modifying operation of the host vehicle responsive to the converging time reaching the first threshold. A method, vehicle, and apparatus are described.