Pretpostavljam da je problem u razlici između rasporednog i ranžirnog kolodvora
http://www.spvh.hr/Privitak:/article/83/P_2_pravilnik_tekst....
a) Kolodvor je službeno mjesto na pruzi s najmanje jednom
skretnicom iz kojega se izravno ili daljinski regulira promet vlakova i
u kojemu vlak otpočinje ili završava vožnju, ili se zaustavlja, ili koje
prolazi bez zaustavljanja. U kolodvoru se može obavljati ulazak i
izlazak putnika te utovar i istovar robe
Prema zadaći u reguliranju prometa postoje:

- rasporedni kolodvor. To je kolodvor u kojemu se, osim
poslova propisanih za kolodvor, uvode u promet i otkazuju vlakovi,
planira otprema vagona, rastavljaju i sastavljaju vlakovi te skrbi o
otpremi putnika i stvari na svojemu rasporednom odsjeku.
- ranžirni kolodvor. To je kolodvor u kojemu se sastavljaju i
rastavljaju teretni vlakovi i koji je opremljen posebnom skupinom kolosijeka i postrojenjem za manevriranje. Ranžirni kolodvor istodobno je i rasporedni kolodvor.

Ovo bi bio rasporedni kolodvor:
http://en.wikipedia.org/wiki/Rail_yard
A rail yard, or railroad yard, is a complex series of railroad tracks for storing, sorting, or loading/unloading, railroad cars and/or locomotives. Railroad yards have many tracks in parallel for keeping rolling stock stored off the mainline, so that they do not obstruct the flow of traffic. Railroad cars are moved around by specially designed yard switchers, a type of locomotive. Cars in a railroad yard may be sorted by numerous categories, including railroad company, loaded or unloaded, destination, car type, or whether they need repairs. Railroad yards are normally built where there is a need to store cars while they are not being loaded or unloaded, or are waiting to be assembled into trains.

A ovo ranžirni kolodvor:
http://en.wikipedia.org/wiki/Classification_yard
A classification yard (American and Canadian English) or marshalling yard (including hump yards) (British and Canadian English) is a railroad yard found at some freight train stations, used to separate railroad cars on to one of several tracks.
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Freight trains that consist of isolated cars must be made into trains and divided according to their destinations. Thus the cars must be shunted several times along their route in contrast to a unit train, which carries, for example, automobiles from the plant to a port, or coal from a mine to the power plant. This shunting is done partly at the starting and final destinations and partly (for long-distance-hauling) in classification yards.

Ukoliko potražite isti (prethodni) tekst na HR:
http://hr.wikipedia.org/wiki/Ranžirni_kolodvor
Ranžirni kolodvor je željeznički kolodvor u kojemu se sastavljaju i rastavljaju teretni vlakovi i koji je opremljen posebnom skupinom kolosijeka i postrojenjem za manevriranje.