Random points in a space time

I have a set of date compost by several years of mortality in the roads. My data are coordinates x&y. I need to create a random distribution of data as a control to be able to compare my data with the random control and see if there are hot-spots of mortality. I know it is possible to create a random set of points with R, but I don’t know how to make both comparable in terms of time. How can I crate these points for a period of several years?

Thank you again

Aurora