Thank you very much, I will try it. I can't put the code like this "If lPK <85 Then ..." because they are roads and their miles (kilometros). Depending on which miles we talk between, one "termino" or another will be written. PK are "kilometros" (unit of measurement on European roads, you use the mile).
There are roads ("carreteras") that do not start at zero, but can start at mile (kilometro) 12.400 and end at mile (kilometro) 36.700, for example.