The decline comes “as businesses struggle to recover confidence amid volatility in international markets,” U.S. Travel said. The TTI is composed of a current travel index (CTI), which measures the number of person-trips involving hotel stays and/or flights each month, and the leading travel index (LTI), which measures the likely average pace and direction of U.S. travel volume over the coming three- and six-month periods. Keeping the travel market in positive territory overall was the continued strength of the domestic leisure travel market, though the pace of this segment’s growth is slowing. International inbound travel is struggling as well, trailing the domestic travel market for the eighth straight month, due to the strong U.S. dollar. Get the full report at U.S. Travel (PDF 287 KB) Read also "Business travel resilient despite attacks in Brussels"