Hi,Jean
Just noticed this query
As stated in an earlier post there is almost a shuttle bus service betwween Tarragona and Reus.(every 30 minutes)which departs Tarragona bus station in the Placa Imperial Tarraco,Platform 11.The first major bus stop is at Reus Bus Station on Avinguda Jaume 1-and the bus then continues to the Placa de Las Oques,which is very close to the centre.Fare is €1.95,driver wont accept large notes.Should you wish to proceed to Reus airport having visited centre,please note that the yellow No 50 bus travels from Reus centre to airport every hour,
Option of travelling by rail also from Tarragona rail station at sea front to Reus rail station,Placa de l'Estacio but bus appears more convenient
If travelling by road,point your car towards Reus and keep going,very well sign-posted,25 mins trip
Avoid Tarragona taxis if possible,notoriously expensive
Enjoy your trip,