 Plainclothes surveyors collected data for five hours per week at target locations, predominantly during morning peak hours.Finally, in 1992, evasion began to show a steady and remarkable decline, dropping to about 2.7% in 1994.The dramatic decrease in evasion during this period coincided with a reinvigorated Transit Police, a 25% expansion of City police, and a general drop in crime in U.S. cities.