To get more visitors to your Town, you will have toupgrade the Train Station.
Tap on the Train Station, then tap on the "upgrade" button. You will then see the current Train Capacityand the train capacity after the upgrade. If you have all the needed upgrade materials,you can upgrade your EGGspress Train and get more visitorswith the next scheduled train.
Keep in mind thatin order to get more visitors, you’ll also need a Town big enough to host them. Check yourTown Halland see your currentvisitor capacity. If you already reached the limit, you will not be able to get more visitors before some of the current ones leave.
You can of course increase the Visitor Capacity of your Town and avoid these kind of problems. Nobody wants to visit an overly crowdedTown. 😉