CPX Season 2024

A look at the 2024 measurement season

Diverse locations: Whether in the city or in the countryside, at 1,800 metres above sea level or at the foot of Lake Geneva, on three-lane national roads or in neighbourhood streets with 30 km/h zones - our measuring system has been used in a wide variety of environments.

Challenges in the field: In urban centres such as the Swiss Plateau or western Switzerland, measurements could often only be carried out at night. In alpine regions, rapid changes in the weather led to numerous changes in plans. Despite this, our team was able to complete all measurement assignments in good time before the onset of winter thanks to their great commitment and flexibility.

Figure 1: CPX measuring device from G+P

Measurement statistics 2024

Measured route length and highlights of the season:

• In spring, around 180 kilometres were measured every week.

• The average rose significantly in autumn. In calendar week 38, over 1,100 km were recorded - a record!

• In August (calendar weeks 31-33), persistent rainy weather slowed down the measurements.

• Overall, the average length measured per week was 313 km.
  Total length of measured routes: 10,038 km. This corresponds approximately to the distance from the five G+P branches to the seven cities (as the crow flies) marked with an asterisk in Figure 2.
   

Figure 2: Total length of the measured routes as distance from the five G+P AG branches

Precision as top priority

Despite the large number of measurements, precision remains our top priority:

• Constant measurement speed: Our teams strictly ensure that the measurements are carried out at a constant speed and within the required range (see Figure 3).

• Stricter requirements: Since the beginning, we have deliberately set stricter requirements for the implementation and evaluation of measurements than the standards defined in the norms.

• Participation in standardisation committees: G+P is actively involved in the standardisation committees in order to continuously improve the standards.

Thanks to our team's many years of experience and consistent quality control, meaningful and precise results were once again achieved in 2024.

Figure 3: Distribution of measured velocities during CPX measurements.

Conclusion

The 2024 CPX measurement season was an eventful year with many challenges and successes. Looking ahead to 2025, we are full of energy and look forward to continuing to make an important contribution to reducing traffic noise.