Link data (road zone) of the main road (toll road, national road, main local road,
prefectural road, road with 13m width or wider) excluding expressway. Expressway is
included in RLB1nn.tab.
Colored roads such as national roads and prefectural roads can be displayed fine by overlapping with the basic roads link and the narrow streets link.
Table Definition and Code Table
Same as the basic road link (RLA1nn.tab). Refer to the corresponding section.