SIGNALS: I. Survey description by Rousseau-Nepton, L, Martin, R, Robert, C, Drissen, L, Amram, P, Prunet, S, Martin, T, Moumen, I, Adamo, A, Alarie, A, Barmby, P, Boselli, A, Bresolin, F, Bureau, M, Chemin, L, Fernandes, R, Combes, F, Crowder, C, Della Bruna, L, Duarte Puertas, S, Egusa, F, Epinat, B, Ksoll, V, Girard, M, Gómez Llanos, V, Gouliermis, D, Grasha, K, Higgs, C, Hlavacek-Larrondo, J, Ho, I, Iglesias-Páramo, J, Joncas, G, Kam, Z, Karera, P, Kennicutt, R, Klessen, R, Lianou, S, Liu, L, Liu, Q, De Amorim, A, Lyman, J, Martel, H, Mazzilli-Ciraulo, B, McLeod, A, Melchior, A, Millan, I, Mollá, M, Momose, R, Morisset, C, Pan, H, Pati, A, Pellerin, A, Pellegrini, E, Pérez, I, Petric, A, Plana, H, Rahner, D, Ruiz Lara, T, Sánchez-Menguiano, L, Spekkens, K, Stasińska, G, Takamiya, M, Vale Asari, N, Vílchez, J