2002 Volume 43 Issue 4 Pages 182-186
In recent years, radio telecommunications have become increasingly important for railway systems. We have studied methods for the calculation of radio propagation characteristics along railway lines, and proposed a new calculation method based on that of ORE A 133. We have also confirmed that the proposed method can calculate the radio signal strength along railway lines at sufficiently high precision in comparison with the conventional method. Furthermore, we have developed a radio propagation characteristics calculation program for easy application of the new method.