Louisville Metro Police say they're ready to set up their Derby weekend traffic detail around Churchill Downs.Chief Robert White says no major changes to the traffic plan have been made."We will probably have anywhere from eight to nine hundred officers working on Oaks and Derby, just focusing on Oaks and Derby, that's internal as well as external dealing with the traffic on each of those days. Security as it relates to that detail will be pretty much the same as it was last year," White said.White says the list of prohibited items at the track remains the same.It includes umbrellas, coolers, grills, backpacks and wagons. Food can be brought in if it's packaged in a clear plastic container.