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Minecraft- Railroad Crossing



I am fairly new to redstone, and I would like some help. I started building an automated railroad crossing: the lights and gates work fine, but I do not know how to implement a system that would decide when to raise or lower the gates. (The gates are controlled by a pulse the length of the press of a wooden button, but the lamps require constant power.) There are 4 detector rails on the track that send their signal to the central system. The attachment shows their layout.




Minecraft- Railroad Crossing


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When a minecart passes either of the two farthest detector rails from the crossing, the system should activate. It should deactivate once the minecart passes one of the two detector rails closest to the crossing.


For example, let's say the minecart is travelling from the left to the right (please see the image). When it passes the first detector rail from the left, the gates are lowered. However, when it touches the second detector rail from the left, nothing happens as the minecart has not yet cleared the crossing. Finally, when the minecart passes over the third detector rail from the left, the gates are raised. Furthermore, it is important that when passing the fourth detector rail from the left, the minecart doesn't make the system reactivate. The scenario would be the opposite when the minecart is coming from the other direction.


Thanks for the idea! Actually, I came up with another one based on yours, so thanks again! I managed to put together the circuit that can be seen in the attachment, and it works perfectly. Now, I just need to integrate that with the railroad crossing. (Yes, I know, it is very messy! I will try to make it more compact...)


A level crossing is an intersection where a railway line crosses a road, path, or (in rare situations) airport runway, at the same level,[1] as opposed to the railway line crossing over or under using an overpass or tunnel. The term also applies when a light rail line with separate right-of-way or reserved track crosses a road in the same fashion. Other names include railway level crossing,[1] railway crossing (chiefly international), grade crossing or railroad crossing (chiefly American),[2] road through railroad, criss-cross, train crossing, and RXR (abbreviated).


The history of level crossings depends on the location, but often early level crossings had a flagman in a nearby booth who would, on the approach of a train, wave a red flag or lantern to stop all traffic and clear the tracks. Gated crossings became commonplace in many areas, as they protected the railway from people trespassing and livestock, and they protected the users of the crossing when closed by the signalman/gateman. In the second quarter of the 20th century[citation needed], manual or electrical closable gates that barricaded the roadway started to be introduced, intended to be a complete barrier against intrusion of any road traffic onto the railway. Automatic crossings are now commonplace in some countries as motor vehicles replaced horse-drawn vehicles and the need for animal protection diminished with time. Full, half or no barrier crossings superseded gated crossings, although crossings of older types can still be found in places. In rural regions with sparse traffic, the least expensive type of level crossing to operate is one without flagmen or gates, with only a warning sign posted. This type has been common across North America and in many developing countries.


Trains have a much larger mass relative to their braking capability, and thus a far longer braking distance than road vehicles. With rare exceptions, trains do not stop at level crossings and rely on vehicles and pedestrians to clear the tracks in advance.


As far as warning systems for road users are concerned, level crossings either have "passive" protection, in the form of various types of warning signs, or "active" protection, using automatic warning devices such as flashing lights, warning sounds, and barriers or gates.[4] In the 19th century and for much of the 20th, a sign warning "Stop, look, and listen" (or similar wording) was the sole protection at most level crossings. Today, active protection is widely available, and fewer collisions take place at level crossings with active warning systems.[8] Modern radar sensor systems can detect if level crossings are free of obstructions as trains approach. These improve safety by not lowering crossing barriers that may trap vehicles or pedestrians on the tracks, while signalling trains to brake until the obstruction clears (however, they cannot prevent a vehicle from moving out onto the track once it's far too late for the locomotive to slow even slightly).[9]


At railway stations, a pedestrian level crossing is sometimes provided to allow passengers to reach other platforms in the absence of an underpass or bridge, or for disabled access. Where third rail systems have level crossings, there is a gap in the third rail over the level crossing, but this does not necessarily interrupt the power supply to trains since they may have current collectors on multiple cars.


Traffic signal-controlled intersections next to level crossings on at least one of the roads in the intersection usually feature traffic signal preemption.[12] Approaching trains activate a routine where, before the road lights and barriers are activated, all traffic signal phases go to red, except for the signal immediately after the crossing, which turns green (or flashing yellow) to allow traffic on the tracks to clear (in some cases, there are auxiliary traffic signals prior to the railroad crossing which will turn red, keeping new traffic from crossing the tracks. This is in addition to the flashing lights on the crossing barriers). After enough time to clear the crossing, the signal will turn. The crossing lights may begin flashing and the barriers lower immediately, or this might be delayed until after the traffic light turns red.


The operation of a traffic signal, while a train is present, may differ from municipality to municipality. In some areas, all directions will flash red, turning the intersection into an all-way stop. In other areas, the traffic parallel to the railroad track will have a flashing yellow for the duration of the train while the other directions face a flashing red light for the duration of the train. Still in other areas, the traffic parallel to the railroad track will have a green light for the duration of the train while the other directions face a red light for the duration of the train. Further still, in other areas traffic lights can operate relatively normally with only the blocked direction turning red for the duration of the train.


Level crossings present a significant risk of collisions between trains and road vehicles. This list is not a definitive list of the world's worst accidents and the events listed are limited to those where a separate article describes the event in question.


A level crossing near Gisborne, sees the Palmerston North - Gisborne Line cross one of Gisborne Airport's runways. Aircraft landing on sealed 1310-metre runway 14L/32R are signalled with two red flashing lights on either side of the runway and a horizontal bar of flashing red lights to indicate the runway south of the railway line is closed, and may only land on the 866 metres (2,841 ft) section of the runway north of the railway line. When the full length of the runway is open, a vertical bar of green lights signal to the aircraft, with regular rail signals on either side of the runway indicating trains to stop.[35][36]


When approaching a public highway-rail crossing, drivers will see the round, yellow advance warning sign. These and pavement markings are generally installed by local or state agencies.


Pavement markings are the same as the advance warning sign, but the letters are painted on the road surface and generally start at the advance warning sign and end with a stop bar near the crossing.


Brandon is walking along a road when the crossing bells and lights make sound at a nearby railroad crossing due to a train approaching. The train slowly moves on the first track. Seeing that the train will take forever to move, Brandon decides to cross the junction, but an oncoming train on the other track hits him.


(Brandon walks on a road when the railroad crossing bells and lights alert an approaching train. The train begins to move slowly. Brandon proceeds to cross the junction, but is hit by an oncoming train.)


At the top right corner. We have 4 different modes. No extra tunnels mean it will just build your railroads. 3X3. Air tunnels build a 33 tunnel with no lights. 5X5 air tunnel does the same thing. Tunnels with blocks & lights build tunnels with blocks & light.


With development coming to parts of downtown Lakeland west of Florida Avenue, city commissioners are turning their attention to ways to move pedestrians and bicyclists over and under the barrier formed by the CSX railroad tracks.


To the north of the railroad tracks, the city is planning pedestrian improvements around Lake Wire linking to a planned residential/retail development on the old Florida Tile site, Bonnet Springs Park, and the North Lake Wire neighborhood, Barmby said.


Detector rails can be used for many things. One train station-like feature could be activating a note block to indicate that a minecart is approaching, or a note block in conjunction with a redstone torch to have a grade crossing signal. It is easiest to simply wire a series of 4-6 detector rails, one around every 20 blocks, to a note block and an inverter that powers a Redstone Torch. As the cart passes each detector rail, it will trigger the circuit for one flash of the torch and a chime, thus giving one 4-6 chimes before the cart reaches the crossing. Additionally, they can be used to create a one-way gate to a powered rail, with any carts coming the other way slowing down if not stopping completely. They also can be used to activate dispensers to create a minecart-friendly mob trap. 041b061a72


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