Line 4B of the HCMC Metro is the proposed branch line of Line 4 to connect Tan Son Nhat Airport to the metro system.

Alignment: Gia Dinh Park Station (metro line 4) – Nguyen Thai Son – Hong Ha – Tan Son Nhat Airport – Truong Son – Hoang Van Thu park – Lang Cha Ca station.

Total length: 3.2 km underground.
Number of station: 3 underground stations.

HCMC Metro Line 4B links and resources

Management: MAUR (Management Authority For Urban Railways).
Wikipedia: Line 4B, Ho Chi Minh City Metro.

HCMC Metro Line 4B maps

[Line 4B map by MAUR.]