| Happy Line | |
|---|---|
| Overview | |
| Locale | Shenzhen |
| Transit type | straddle-beammonorail |
| Number of lines | 1 |
| Number of stations | 7 |
| Operation | |
| Began operation | 16 February 1999; 26 years ago (1999-02-16) |
| Ended operation | 1 November 2018; 7 years ago (2018-11-01) |
| Number of vehicles | 5 |
| Technical | |
| System length | 3.88 km (2.41 mi) |
| Track gauge | 500 mm (19+3⁄4 in) |
| Electrification | 380 V 50 Hz AC |
TheHappy Line was amonorail line in centralShenzhen. The line was a loop and has seven stations, including stops atSplendid China,Happy Valley,Window of the World, andChina Folk Culture Village.

The monorail trains were built byIntamin with a fleet of five P28/24 class, three-car trains, each with a capacity of 24 passengers per train.[1] The trains use 380 V 50 Hz AC power supply, and are equipped with four 15 kW (20 hp) AC motors and two 75 kW (101 hp)variable-frequency drives. Under normal circumstances, there are 5 trains running on the track at the same time.[2]
The line features a maximumgrade of 10%. The monorail beam was 500 mm (20 in) wide and 700 mm (28 in) tall, and has a support column every 15 metres (49 ft). Its maximal speed was 40 km per hour.[1]
The operating hours of Happy Route are 9:30 am – 6:30 pm on weekdays and 9 am – 7 pm on weekends.[3] The actual traveling speed was about 20 km/h (12 mph), and it takes about 25 minutes for the train to complete the circle.[4] The fare was RMB 50.
At 11am on 1 November 2018, a system failure occurred on the Happy Line, causing a collision between the third and fourth cars carrying more than 20 people. This accident caused one person a head injury, one person a waist injury and other passengers with minor injuries to varying degrees.[5]