Both the 7 and L Trains are going to be getting improvements in service before the end of the year. The 7 will see an overall 9 percent increase in service with more trains. As for the intensely overcrowded L Train, the frequency of service will increase to a train every 3.5 minutes rather than every 4 minutes during morning rush hour. There will also be increases in midday and evening service that, according to Metro, should reduce waits “by a couple of minutes in both directions.” L Train ridership has skyrocketed 48 percent since 1998 and is expect to grow even more in the near term.