This railway includes mainline and LU Piccadilly line services to all three Heathrow stations.
| Heathrow | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Description | The National Rail and London Underground routes to all three Heathrow stations | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Country |  United Kingdom | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Time period | 2010s | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Train Operating Company | Heathrow Express, Heathrow Connect, London Underground | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Simulation difficulty |   | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Author | JK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Website | Heathrow | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Rolling Stock | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Timetable
A standard repeating timetable has been included, with the following services:
| Heathrow Services | |||
| Train Operating Company | Origin | Destination | Frequency (tph) |
| Heathrow Connect | Heathrow Terminal 1,2,3 | Heathrow Terminal 4 | 4 |
| London Paddington | 4 | ||
| Heathrow Express | Heathrow Terminal 5 | 4 | |
| Piccadilly Line | Central London | 10 | |
| Heathrow Terminal 1,2,3 (via Terminal 4 from London) | 10 | ||
Operational Tips
If automatic signal routes are preset then it is advisable to delete the short section from the Paddington entry point to the signal just before the bottom Terminal 123 platform. This is because shuttle service routes need to be set from Terminal 4 to the exit signal at the bottom Terminal 123 platform, which is adjacent to this platform’s entry signal for trains from Paddington, and the program won’t allow routes in opposite directions to finish adjacent to each other.