This paper extends the analyses by Tabuehi on transport pricing and modal split when there is a mass transit parallel to a road with a bottleneck between a residential area and a workplace．The extensions are in two aspects，one considering the effects caused by discomfort of mass transit，another treating the travel time difference between two modes．Through studying the equilibrium of COSTS incurred on individuals， we investigate the flow distributions resulting from several transit fare and road—use tolling schemes and compare the individua1 perceived COSTS as wel1 as the tota1 social costs．Some usefu1 insights different from previous understandings on this problem are derived．The policy which utilizes the revenue generated from road—use tolling to subsidize transit，is also discussed.