The Trend Traffic Indicator is a useful and popular free Forex indicator for the MT4 platform. The indicator works by analyzing the historical price data of a currency pair and using it to generate a trend line. This line is then used to identify potential entry and exit points for trades. The indicator is free to use and can be easily downloaded and installed on the MT4 platform. It is a popular choice for traders looking to make the most of their trading strategies. The Trend Traffic Indicator is a great tool for traders looking to identify and follow trends in the Forex market.