41. Essentially the theory goes that the speed of light is a cosmic speed restriction that nothing can pass. 42. Some railway lines were damaged or threatened by unexploded bombs which forced speed restrictions down to five mph. 43. As a result, more care had to be taken by crewmen in approaching junctions and speed restrictions . 44. These errors meant that the placing of the AWS magnet for the temporary speed restriction was also incorrect. 45. Trains using the tunnel were subject to speed restrictions around the area damaged in the Nov . 18 fire. 46. Since Tuesday's accident, Railtrack has imposed speed restrictions at 81 sections of track around the country. 47. This line is subject to many speed restrictions due to the need to replace several old sections of track. 48. Train movements in the station area are subject to a speed restriction in order to reduce noise and smoke. 49. Blanket heat-related speed restrictions were intended to be eliminated, limiting delays even on hotter summer days. 50. The TBL 1 + definition allowed for an additional speed restriction to be transmitted to the train computer already.
