The real author:
The indicator is used as a trader assistant on two Moving Averages and the RSI.
It displays the possible end of the rollback on the day trend. I.e. this arrow indicator gives a signal to make solutions.
This indicator was first implemented in MQL4 and published in Code Base at mql4.com on 22.06.2009.
Fig.1 The RSI_MA_LevelSignal indicator