7 Trains at unique relay-controlled railroad crossing on polish HSR line
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- Опубликовано: 13 июл 2024
- 7 trains recorded at railroad crossing in Radwan, Poland during two trips in 2020 and 2021. Railroad crossing was located on CMK line (Central Railway Corridor) which fulfills the purpose of high speed intercity connection between Upper Silesian industrial region, Kraków and Warsaw cities in Poland.
Unique railroad crossing operated under the relay-based COB-63A automatic crossing system from 1970s (CMK line itself was finished as late as 1977), consisting of about 60 electromagnetic relays. Additionally, crossing was equipped with a custom quad-gate controller circuit, never seen in the production variants of the system (most likely used only on CMK-line crossings). This upgrade, developed in 1988 due to the speed limit on CMK line being raised to 160 km/h, was the first implementation of automatic quad-gate crossing on polish railway network.
Railroad crossing in Radwan was removed in July 2021 after being replaced by an overpass. Since this section of the CMK line was about to be upgraded to 125 MPH it could no longer include any railroad crossings along its route (highest railway speed in Poland which permits railroad crossings is 100 MPH) and as such few remaining crossings on the line had to be removed.
Timestamps:
0:00 - Crossing and its surroundings in September 2020
1:25 - Two ED250 Pendolino EMUs speed through the crossing at 100 MPH speed
3:36 - Surroundings of the crossing in May 2021. Construction of the overpass about to replace the crossing is nearing its conclusion
4:46 - Three intercity trains speed through the crossing at 75 MPH (speed limit lowered due to construction works and one of the tracks being closed)
9:57 - Railroad crossing from the perspective of the new overpass
11:42 - Railroad crossing from the perspective of COB-63A system relay boxes - relay sounds included
13:11 - Epilogue
Best wishes to two of my friends who accompanied me on the second trip to the crossing: @KolejWMazowieckim and @sundaystreet8148
Music used in the video: Muzyka w filmie: Stellar Wind - Unicorn Heads from youtube audio library 
Наука
10:11 Wygląda jak by był na makiecie :D 👍
Ładnyy przejazd pociągi też fajnie przejechały
Great scene, detail and video! Greetings from Italy. Stefano
Twój filmik jest bardzo fajny i bardzo mi się podobał 🖐
Nigdy nie widzałem takiego cob 63a z takim sygnałem akustycznym
Pięknie nagrania pięknego cobusa!
piekny przejazd i ciekawa modyfikacja coba na cztery rogatki
do dzisiaj zaluje ze tam nie wpadlem jak jeszcze stal, bardzo unikalne miejsce
piekne kadry, w szczegolnosci podobaja mi sie te wieczorne, ten w 8:20 jest szczegolnie klimatyczny
bardzo fajny tez jest ten kadr gdzie mozna uslyszec prace przekaznikow
10:13 Dosłownie wygląda jak na makiecie! :D
bez kitu
Jest Passat B5 więc daje łapkę w górę.
Fajny materiał, zacznijmy jak nie to ze za PRL wiecznie czegoś brakowało to nigdy by tych przejazdów nie bylo a zaraz wiadukty podobnie jak było na Gierkowce ..wreszcie pozbyto się tej patologi,tym bardziej ze widac na obu nagraniach ze zadbać o stan techniczny nie umia do teraz - co z tego ze może tam mało jedźi pojazdów,oświetlenie dragów rogatkowych powinno być sprawne...
Ładne materiał należy się like! 👍 Ciekawe że są tu 4 rogatki na cob-63a.
Te sygnalizatory to SDPK lub GSDPK300
Interesting alarm on this crossing, and it keeps on ringing after barriers are lowered despite it’s a full barrier device, is that normal in Poland? Also intriguing that it stops shortly before train passes, like in Finland. Lights flashes in a very unusual way too. Very cool crossing!
In Poland behavior of the bells isn't dictated by the crossings' barrier layout but rather it depends on the crossing being automatically or manually operated. If the crossing is operated manually by a railway employee then the bell stops ringing after the gates go down. If the crossing is an automatic one, like the one in this vid, bells ring all the way till the train enters the crossing.
Another feature of polish automatic crossings is that bells typically shut off after the first axle of the train passes the "crossing shutdown" sensor, located in the immediate proximity of the crossing. This is the case on practically all automatic crossings with dedicated track sensors.
As for the unusual behavior of flashing light signals, the reason for this oddity was the old, relay-based control system from 1970s which the crossing in the video was equipped with. This system (SP-COB-63A) was designed to cooperate with older, single-light signals and didn't support alternating blinking pattern of modern signals. Most of COB-63A crossings still operating today have been upgraded with modern flasher modules, but one in this video still operated on its original components all the way till the crossing was closed in 2021.
COB z tego co wiem to mial możliwość podłączenia dwóch rogatek wiec co tu robią cztery?
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