1: Zaječar – Knjaževac (DEVELOPED_WITH_SIGNS)

2: Knjaževac – Pirot (DEVELOPED_WITH_SIGNS)

3: Pirot – Rsovci (DEVELOPED_WITH_SIGNS)

4: Rsovci – Gradina (DEVELOPED_WITH_SIGNS)

5: Gradina – Tran (UNDER_DEVELOPMENT)

6: Tran – Treklyano (UNDER_DEVELOPMENT)

7: Treklyano – Kyustendil (UNDER_DEVELOPMENT)