This data subset is part of a the LiRA-CD collection The subset contains standard road condition measurements from the VIAFRIK vehicle – a skid resistance device complying with CEN/TS 15901-5 standard. The friction data (.csv) is stored in a flat format; each column represents a road condition parameter, GPS information or timestamp, while each row represents a new record in space. The subset also contains car sensor data from the AutoPi and the vehicle CAN bus driving behind the VIAFRIK vehicle (on a wet surface). The car data (.txt) is stored in a flat format; each column represents a car sensor signal, GPS information or timestamp, while each row represents a new record in time. This item is part of the collection "Live Road Assessment Custom Dataset (LiRA-CD)", https://doi.org/10.11583/DTU.c.6659909