arcpy.CreateRoutes_lr(in_line_features="LINKS", route_id_field="Route", out_feature_class="C:/SCRATCH/SCRATCH.gdb/ROUTES", measure_source="TWO_FIELDS", from_measure_field="From_T", to_measure_field="To_T", coordinate_priority="UPPER_LEFT", measure_factor="1", measure_offset="0", ignore_gaps="IGNORE", build_index="INDEX")

arcpy.MakeQueryTable_management(in_table="ROUTES;fromExcel", out_table="QueryTable3", in_key_field_option="ADD_VIRTUAL_KEY_FIELD", in_key_field="", in_field="", where_clause="ROUTES.aLink = fromExcel.R")