[system-traders] Trend Following: Avoiding Sideways Trading Ranges?

[Matthew Jurgens <mjurgens AT edcint.co.nz>]

Trend following system normally try to find existing trends and follow 
them. Sometimes what looks like a trend is simply part of a sideways 
trading range and depending on the system parameters you may buy a lot 
of the time right near the top of the trading range just before the 
stock is likely to start descending. Are there any reliable 
indicators/techniques that may help avoid stocks stuck in a sideways 
trading  range?