the largest conglomeration of Abell clusters in the local Universe.

The Shapley Supercluster Survey (ShaSS) will map a 23deg$^2$ region ($\sim$ 260Mpc$^{2}$) of the Shapley supercluster at $z{=}0.048$, containing filaments and embedded galaxy groups which form a dynamically-bound network connecting nine Abell and two poor clusters, in order to identify the primary locations (groups, filaments, clusters) and mechanisms for the transformation of spirals into the S0s and dEs.

Among the observational studies of superclusters, the STAGES project [@G09] addressed in particular the study of galaxy evolution in the Abell901(a,b) supercluster at redshift $z\sim$0.165 while the ORELSE survey (Lubin et al. [-@LGL09], but see also Mei et al. [-@MSH12]) searched for structures on scales greater than 10Mpc at higher redshifs (0.6$<z<$1.3) with the aim to investigate the properties of member galaxies. The comparison between the STAGES, ORELSE and other similar studies and ShaSS will be then unavoidable and useful to trace the evolution with redshift, although we notice that the area (in Mpc$^2$) of ShaSS is a factor 10 that of the STAGES survey and was chosen to map the filaments connecting the Abell clusters.

The optical survey VST-ACCESS in four bands collected at the ESO VLT Survey Telescope (VST) represents 