Chris Butler
Member
- Joined
- 23 May 2010
- Messages
- 272
Lots of freight from the WCML(especially to Felixstowe) uses the North London Lin . The thing is that between Willesden and Camden Rd, it can take either of two routes. The first, via Primrose Hill, involves crossing the NLL and so blocking that line in both directions. The second, via Kensal Rise, follows the NLL for a longer distance, but does not require any crossover.
Since the Overground service stops at all stations, its average speed is pretty low (I'd guess 20mph-30mph) and so freight does not 'slow down' the passenger services. I had therefore assumed that the Kensal Rise route would be the preferred route because it would impact the capacity of the NLL less. In fact, when I check (today) on RTT, both routes are used, but the Primrose Hill route is used more.
What am I missing ? Does it surprise other than the flat junction is preferred ?
Since the Overground service stops at all stations, its average speed is pretty low (I'd guess 20mph-30mph) and so freight does not 'slow down' the passenger services. I had therefore assumed that the Kensal Rise route would be the preferred route because it would impact the capacity of the NLL less. In fact, when I check (today) on RTT, both routes are used, but the Primrose Hill route is used more.
What am I missing ? Does it surprise other than the flat junction is preferred ?