<p>The paper is devoted to the task of ensuring strict requirements for latency and reliability of data delivery for uplink video traffic generated by a remote vehicle control application in 5G Vehicle-to-Everything (V2X) networks. A distinctive feature of this type of traffic is that the size of video frames is variable, so we propose using a hybrid radio resource allocation scheme. According to this scheme, each user is assigned a dedicated subchannel, as well as a subchannel common to all users, which is used when the resources of the dedicated subchannel are insufficient to transmit a packet. We develop an analytical model that allows us to estimate the probability of packet loss for each user when using a hybrid resource allocation scheme. We show how to select optimal parameters for the hybrid scheme by using the developed analytical model.</p>