Comparison of the maximum height of the warp as a function of Galactocentric distance obtained in sim-2 for three different mean ages (dashed lines) with other authors (symbols): López-Corredoira et al. (2002) from red giants (LC02: black open squares), Yusifov (2004) from pulsars (Y04: orange diamonds), Burton (1988) from HI gas (B88: orange plus signs), Levine et al. (2006) model fitted on HI (L06: blue open triangles), Drimmel & Spergel (2001) from COBE/DIRBE data (DS01: black asterisks). Positive (resp. negative) values of z_w refer to second (resp. third) quadrant.