Global tests of the Toulouse Metro (France)

摘要

This article describes an innovative method to test the performance of tunnel ventilation systems. This method has proved to be very reliable, accurate, fast and repeatable. As a matter of fact, measuring velocity using this process is considered very efficient for many reasons: 1. The position of the sensors was defined using computer simulation, which ensures an optimum placement within the allowed area of the cross-section. 2. The design of the light frames allows to repeat the measurements for the exact same mesh on the cross-section for the whole tunnel. 3. Recording data and being able to analyze results in real-time during the tests allow to adjust the sampling period on-site and get the best results. 4. Repeatable measurement gives a real confidence in the results for Operators.