I've always thought the train service through Leyton
Midland runs at fifteen minute intervals and never goes
further than Barking at one end and Gospel Oak at the
other. I normally use the service only at off-peak periods.
Yesterday I travelled in the rush hour and just missed a
westbound train. I assumed I would have to wait another
fifteen minutes.

Instead I found another train announced: the 08.08 to
Willesden Junction. Clearly this train runs beyond Gospel Oak.
The train was quite full so an additional train is financially
justified. I didn't know spare train sets were available for
extra duties in the peak periods.

I got off at Blackhorse Road. I would have liked to have
stayed on to see how the train negotiated the Gospel Oak
junction.