Both maps are based on dr_school, It means what they having exactly same traps, music, design and all other stuff, but it looks like school_run version is more detailed, haves less bugs, automode, freerun, and it won't crash server.
https://gamebanana.com/maps/204271 dr_school_redux
https://gamebanana.com/maps/201191 dr_school_run
https://gamebanana.com/maps/204271 dr_school_redux
https://gamebanana.com/maps/201191 dr_school_run