What is the average and maximum number of total passengers for train stations in London or Glasgow?
SELECT avg(total_passengers) ,  max(total_passengers) FROM station WHERE LOCATION  =  'London' OR LOCATION  =  'Glasgow'
SELECT avg(total_passengers) ,  max(total_passengers) FROM station WHERE LOCATION  =  'London' OR LOCATION  =  'Glasgow'
[{'avg(total_passengers)': 48.01500000000001, 'max(total_passengers)': 103.534}]