| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Keisei Electric Railway - Lines |  |  |  |  |
| 3 | Line name | Japanese | Endpoints | Distance (km) | Type1 |
| 4 | Main Line | 本線 | Keisei-Ueno – Komaino Junction | 67.2 | 1 |
| 5 | Main Line | 本線 | Komaino Junction – Narita Airport Terminal 1 | 2.1 | 2 |
| 6 | Oshiage Line | 押上線 | Oshiage – Aoto | 5.7 | 1 |
| 7 | Chiba Line | 千葉線 | Keisei-Tsudanuma – Chiba Chūō | 12.9 | 1 |
| 8 | Chihara Line | 千原線 | Chiba Chūō – Chiharadai | 10.9 | 1 |
| 9 | Higashi-Narita Line | 東成田線 | Keisei-Narita – Higashi-Narita | 7.1 | 1 |
| 10 | Kanamachi Line | 金町線 | Keisei-Takasago – Keisei-Kanamachi | 2.5 | 1 |
| 11 | Narita Airport Line (Narita Sky Access) | 成田空港線 | Keisei-Takasago – Narita Airport Terminal 1 | 51.4 | 2 |
| 12 | Overlap | Overlap | Keisei-Narita – Komaino Junction2 | (6.0) | 1 |
| 13 | Overlap | Overlap | Narita Airport Terminal 2·3 – Narita Airport Terminal 13 | (1.0) | 2 |
| 14 | Total | Total | Total | 152.8 | - |
| 15 | Projected lines | Projected lines | Projected lines | Projected lines | Projected lines |
| 16 | (Chihara Line extension) | - | Chiharadai – Amaariki | 8.2 | 1 |

Question: How many lines make up the Keisei Electric Railway and what is the total distance covered by the lines in total?
Answer: Keisei operates 152.8 km of railway which consists of one trunk line named Main Line and six branch lines.