This map was originally made for a clan called rally blockland, a clan that has since been abandoned… This was the original description for the map: 

Map title: Rally Block Clan Map
Creator: MeMan (BL_ID 3242)
Clan Owner: Batman_00001 (BL_ID 7500)
Clan description: We like to race cars. thats it.
More information here: http://forum.blockland.us/index.php?topic=95342.30
Map description: A large map for racing, It was designed for armored vans or jeeps. Inspired by mario kart.

Rally blockland (C) Batman_00001 and MeMan.