The block time has a generic 15min taxi time in the hub and 7 min taxi time at the outstation. I do not work there but that is what it was last year. I never had a 15 min or less taxi time in ewr regardless of the time of day, weather, lack of taxi traffic, and that coming out or going into the gate. They are getting cheated. They get payed block time nothing else. If it is block for one hour gate to gate that is all you will get. If you taxi for an hour(#30 for takeoff), fly for two hours(one of which is holding) and then taxi for an hour(no available gate), you will only be paid the block time period. All those things can easliy happen with ewr.