Complex sentence: The D532 state road traffic volume is not reported by Hrvatske ceste, however they regularly count and report traffic volume on the A1 motorway Zagvozd interchange, which connects to the D532 road only, thus permitting the D532 road traffic volume to be accurately calculated.
Split into simpler sentences: The D532 state road traffic volume is not reported by Hrvatske ceste. However, they regularly count and report traffic volume on the A1 motorway Zagvozd interchange, which connects to the D532 road only, thus permitting the D532 road traffic volume to be accurately calculated.