Appendix 3 Standard Road Cycle (SRC)
United Kingdom
Introduction
The standard road cycle (SRC) is a kilometre accumulation cycle. The vehicle may be run on a test track or on a kilometre accumulation dynamometer.
The cycle consists of 7 laps of a 6 km course. The length of the lap may be changed to accommodate the length of the mileage accumulation test track.
Standard Road cycle
| Lap | Description | Typical acceleration rate m/s2 |
|---|---|---|
| 1 | (start engine) idle 10 seconds | 0 |
| 1 | Moderate acceleration to 48 km/h | 1,79 |
| 1 | Cruise at 48 km/h for 1/4 lap | 0 |
| 1 | Moderate deceleration to 32 km/h | – 2,23 |
| 1 | Moderate acceleration to 48 km/h | 1,79 |
| 1 | Cruise at 48 km/h for 1/4 lap | 0 |
| 1 | Moderate deceleration to stop | – 2,23 |
| 1 | Idle 5 seconds | 0 |
| 1 | Moderate acceleration to 56 km/h | 1,79 |
| 1 | Cruise at 56 km/h for 1/4 lap | 0 |
| 1 | Moderate deceleration to 40 km/h | – 2,23 |
| 1 | Moderate acceleration to 56 km/h | 1,79 |
| 1 | Cruise at 56 km/h for 1/4 lap | 0 |
| 1 | Moderate deceleration to stop | – 2,23 |
| 2 | idle 10 seconds | 0 |
| 2 | Moderate acceleration to 64 km/h | 1,34 |
| 2 | Cruise at 64 km/h for 1/4 lap | 0 |
| 2 | Moderate deceleration to 48 km/h | – 2,23 |
| 2 | Moderate acceleration to 64 km/h | 1,34 |
| 2 | Cruise at 64 km/h for 1/4 lap | 0 |
| 2 | Moderate deceleration to stop | – 2,23 |
| 2 | Idle 5 seconds | 0 |
| 2 | Moderate acceleration to 72 km/h | 1,34 |
| 2 | Cruise at 72 km/h for 1/4 lap | 0 |
| 2 | Moderate deceleration to 56 km/h | – 2,23 |
| 2 | Moderate acceleration to 72 km/h | 1,34 |
| 2 | Cruise at 72 km/h for 1/4 lap | 0 |
| 2 | Moderate deceleration to stop | – 2,23 |
| 3 | idle 10 seconds | 0 |
| 3 | Hard acceleration to 88 km/h | 1,79 |
| 3 | Cruise at 88 km/h for 1/4 lap | 0 |
| 3 | Moderate deceleration to 72 km/h | – 2,23 |
| 3 | Moderate acceleration to 88 km/h | 0,89 |
| 3 | Cruise at 88 km/h for 1/4 lap | 0 |
| 3 | Moderate deceleration to 72 km/h | – 2,23 |
| 3 | Moderate acceleration to 97 km/h | 0,89 |
| 3 | Cruise at 97 km/h for 1/4 lap | 0 |
| 3 | Moderate deceleration to 80 km/h | – 2,23 |
| 3 | Moderate acceleration to 97 km/h | 0,89 |
| 3 | Cruise at 97 km/h for 1/4 lap | 0 |
| 3 | Moderate deceleration to stop | – 1,79 |
| 4 | idle 10 seconds | 0 |
| 4 | Hard acceleration to 129 km/h | 1,34 |
| 4 | Coastdown to 113 km/h | – 0,45 |
| 4 | Cruise at 113 km/h for 1/2 lap | 0 |
| 4 | Moderate deceleration to 80 km/h | – 1,34 |
| 4 | Moderate acceleration to 105 km/h | 0,89 |
| 4 | Cruise at 105 km/h for 1/2 lap | 0 |
| 4 | Moderate deceleration to 80 km/h | – 1,34 |
| 5 | Moderate acceleration to 121 km/h | 0,45 |
| 5 | Cruise at 121 km/h for 1/2 lap | 0 |
| 5 | Moderate deceleration to 80 km/h | – 1,34 |
| 5 | Light acceleration to 113 km/h | 0,45 |
| 5 | Cruise at 113 km/h for 1/2 lap | 0 |
| 5 | Moderate deceleration to 80 km/h | – 1,34 |
| 6 | Moderate acceleration to 113 km/h | 0,89 |
| 6 | Coastdown to 97 km/h | – 0,45 |
| 6 | Cruise at 97 km/h for 1/2 lap | 0 |
| 6 | Moderate deceleration to 80 km/h | – 1,79 |
| 6 | Moderate acceleration to 104 km/h | 0,45 |
| 6 | Cruise at 104 km/h for 1/2 lap | 0 |
| 6 | Moderate deceleration to stop | – 1,79 |
| 7 | idle 45 seconds | 0 |
| 7 | Hard acceleration to 88 km/h | 1,79 |
| 7 | Cruise at 88 km/h for 1/4 lap | 0 |
| 7 | Moderate deceleration to 64 km/h | – 2,23 |
| 7 | Moderate acceleration to 88 km/h | 0,89 |
| 7 | Cruise at 88 km/h for 1/4 lap | 0 |
| 7 | Moderate deceleration to 64 km/h | – 2,23 |
| 7 | Moderate acceleration to 80 km/h | 0,89 |
| 7 | Cruise at 80 km/h for 1/4 lap | 0 |
| 7 | Moderate deceleration to 64 km/h | – 2,23 |
| 7 | Moderate acceleration to 80 km/h | 0,89 |
| 7 | Cruise at 80 km/h for 1/4 lap | 0 |
| 7 | Moderate deceleration to stop | – 2,23 |
The standard road cycle is represented graphically in the following figure:
