  The discovery of new clear windows in the Galactic plane using the VVV
near-IR extinction maps allows the study of the structure of the Milky Way (MW)
disk. The ultimate goal of this work is to map the spiral arms in the far side
of the MW, which is a relatively unexplored region of our Galaxy, using red
clump (RC) giants as distance indicators. We search for near-IR clear windows
located at low Galactic latitudes ($|b|< 1$ deg) in the MW disk using the VVV
near-IR extinction maps. We have identified two new windows named VVV WIN
1607-5258 and VVV WIN 1475-5877, respectively, that complement the previously
known window VVV WIN 1713-3939. We analyse the distribution of RC stars in
these three clear near-IR windows and measure their number density along the
line of sight. This allows us to find overdensities in the distribution and
measure their distances along the line of sight. We then use the VVV proper
motions in order to measure the kinematics of the RC stars at different
distances. We find enhancements in the distance distribution of RC giants in
all the studied windows, interpreting them as the presence of spiral arms in
the MW disk. These structures are absent in the current models of synthetic
population for the same MW lines of sight. We were able to trace the end of the
Galactic bar, the Norma arm, as well as the Scutum Centaurus arm in the far
disk. Using the VVV proper motions, we measure the kinematics for these
Galactic features, confirming that they share the bulk rotation of the Galactic
disk.
