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A comprehensive theoretical study of the E1, M1, E2 transitions of Ca-liketungsten ions is presented. Using multi-configuration Dirac-Fock (MCDF) methodwith a restricted active space treatment, the wavelengths and probabilities ofthe M1 and E2 transitions between the multiplets of the ground stateconfiguration ([Ne]3s$^{2}$3p$^{6}$3d$^{2}$) and of the E1 transitions between[Ne]3s$^{2}$3p$^{5}$3d$^{3}$ and [Ne]3s$^{2}$3p$^{6}$3d$^{2}$ have beencalculated. The results are in reasonable agreement with available experimentaldata. The present E1 and M1 calculations are compared with previous theoreticalvalues. For E2 transitions, the importance of electron correlation from 3s and3p orbitals is pointed out. Several strong E1 transitions are predicted, whichhave potential advantage for plasma diagnostics.

E1, M1, E2 transition energies and probabilities of W$^{54+}$ ions