 The competition between AV and PT decreases passengers' travel time but increase their travel cost. The generalized travel cost is still reduced when counting the value of time.
<coherence>  The competition between AV and PT decreases passengers' travel time but increase their travel cost. The generalized travel cost is still reduced when counting the value of time.
 The competition between AV and PT decreases passengers' travel time but increases their travel costs. Nonetheless, the generalized travel cost is still reduced when counting the value of time.