The queues are extremely long. At many stations in Sydney, some passengers who buy weekly tickets even have to wait 20 minutes to buy tickets. It is reported that the NSW government is currently promoting Opal cards (similar to Myki Card in Melbourne, Go Card in Brisbane and Smart Rider in Perth). The promotion of Opal cards will avoid long queues at ticket offices and automatic ticket machines. occur.
With the Opal card, you don't need to buy a paper ticket, you only need to charge the card to use it. This card supports all public transportation. Passengers can recharge money online, which avoids the crowded queue for ticket purchase. Regrettably, although Opal cards can be used at many train stations in Sydney, it has not been extended to all train stations.
Source: Sydney Today