Common use of Control Groups Clause in Contracts

Control Groups. In order to better assess whether the observed results for the 95 Express Bus Service were due to the UPA project and not exogenous factors, transit performance and service usage was compared to two control groups. The first control group was other bus service in the I-95 corridor not including the 95 Express Bus. Specifically, this control group includes Miami-Dade Transit’s Routes 77 and 277, both of which run parallel to I-95 on 7th Avenue. They are not part of the UPA project but do provide service between Golden Glades Interchange and downtown Miami. The second control group is the entire Miami-Dade Metrobus system. This control group was chosen because the majority of the 95 Express Bus Service is operated by Miami-Dade Transit. Tri-Rail was considered as a third control group but was eliminated after it was discovered in surveys that 34% of new riders (269 out of 801) to the 95 Express Bus switched from Tri- Rail and Metrorail. Tri-Rail cannot be considered as a control group because it was impacted by the study. Control Group 1 Miami-Dade Transit Routes 77 & 277 Control Group 2 Miami-Dade Transit Bus System-wide 4 Exogenous Factors and Regional Trends‌ Implementation of Express Lanes on I-95 was just one event impacting travel patterns on the corridor. This section summarizes some of the other major events that occurred during the 28 month period between January 2008 and April 2010 that may have had an impact on travel patterns and mode choice decisions within the corridor.