Anyone who has been on a train may notice that there are many kinds of signs on both sides of the railway, which are divided into two types: line signs and signal signs, the former being mainly marked by the condition of the line, and the latter being the main indication of operation. They are not only convenient for the maintenance and maintenance of the line, but also convenient for the locomotive driver to master the change of the line and drive safely.
The line mark should be located on the left side of the line according to the kilometer calculation direction. When the two-track section shall be marked separately, it shall be located on the left side of the running direction of the train. Main: kilometer mark, half kilometer mark: located in a line from the starting point of the calculation of each full kilometer, half a kilometer.
The main function of the km mark is to pinpoint the location of the line, for example, when the ranger checks the line on the line, if a problem is found, it will be possible to point out the exact location of the problem according to the km mark, the half km mark in the record and the report. In order to facilitate repair and repair units timely handling. Signal signs should be located on the left side of the train direction (except alarm flares) for driver observation. Main: alarm Impulse: located in the middle of 4 m distance between the rendezvous lines. When the distance between the lines is less than 4m, it is set at the beginning of the large distance between the centerlines of the two lines. Police flares are used to indicate the parking position of the rolling stock and to prevent the side impact of the rolling stock.
Station boundary marker: set not less than 50 m outside the left-hand side of the forward turnout on the left side of the train running direction of the two-line interval, or opposite to the incoming signal unit of the adjacent line, not less than 50 m outside the direction of the outgoing turnout (the alarm flasher to the outbound turnout). Pilot pick-up location mark: when the train is 200 meters away from the station boundary, it cannot see the hand signal displayed by the pilot at the arrival signal or the station boundary mark.
A pilot pick-up location mark shall be provided at a location 200 m away from the station boundary where the pilot hand signal can be clearly seen. Driver whistles: 500 m ahead of crossing, bridge, tunnel and bad line of sight. When the driver sees this sign, he must sound to remind people that the train is coming. End mark of catenary: it is located at the boundary of the contact net in the station. Electric locomotives gain electric power through the catenary, and once disengaged, it will be difficult to move. The end mark of the catenary is to remind the electric locomotive driver not to exceed the effective range of the catenary.
Operation bid: located in the construction line and adjacent line distance from the construction site at both ends of 500m 1000m. Drivers should be alert to this sign, sound the whistle, remind construction personnel to evacuate to a safe location. Deceleration mark: set at 20 m at each end of the point where the deceleration is required. The front side indicates that the train should pass through the section according to the prescribed speed limit, and the back side indicates that the train should pass through the end of the section according to the prescribed speed limit.
Bridge deceleration signal board: located at both ends of the bridge where speed limit is required, the upper part represents the limited speed of the passenger car and the lower part indicates the limited speed of the freight car. So many signs, railway personnel should bear in mind, otherwise it will cause accidents. So the design of the logo should not only explain the problem, but also clear at a glance, easy to remember. Usually use white bottom, a few for yellow bottom, blue bottom add black character or black pattern.
