need all parts of Q2 answered

2. [12 pts] Consider the figure below which compares the average costs (AC) of ridership for two different transportation systems, for two similarly populated cities: Atlanta and Barcelona (both 2.6 million, and they share the same identical cost curves), where observed hourly light-rail passenger volumes are 11k and 32K, respectively. a. [6 pts] Explain why the light-rail system is negatively sloped while the highway system AC curve is positively sloped (List all reasons covered in our lectures) b. [6 pts] What policy tools could the Major of Atlanta employ in order to increase public transport ridership? List both transportation related tools and urban growth related tools. Average Cost per rider [S) Highway System- Automobiles Light-rail System 11 19 ZE Hourly passenger volume (1,000)