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Emission Test Cycles

City Suburban Heavy Vehicle Cycle & Route

Data points: Cycle (speed vs. time) | Route (speed vs. distance)

The City Suburban Cycle (CSC) is a chassis dynamometer test for heavy-duty vehicles developed by the West Virginia University. The CSC is also abbreviated as CSHVC (City Suburban Heavy Vehicle Cycle).

The test is also available in a “route” version—the City Suburban Heavy Vehicle Route (CSHVR)—where the vehicle speed is given as a function of travelled distance, rather than time.

Vehicle speed over the duration of the CSC driving cycle is shown in Figure 1.

[chart]
Figure 1. City Suburban Heavy Vehicle Cycle

The following are selected parameters of the CSC cycle:

  • Duration: 1700 s
  • Total distance: 10.75 km (6.68 mi)
  • Maximum speed: 70.55 km/h (43.84 mph)
  • Average speed: 22.77 km/h (14.15 mph)