The experimental neighborhoods were chosen around the six westernmost Expo Line Phase I stations. The six easternmost stations were not chosen because they were also served by either the Blue Line light rail or the Silver Line rapid bus, which provide similar service in conjunction with the new Expo Line service. In addition, the Jefferson/USC, Expo Park/USC, and Expo/Vermont stations were excluded because of their proximity to the University of Southern California campus, which has a very different socio-‐demographic profile than the neighborhoods to the west. Because this area has a high proportion of university students, any travel behavior change, though interesting in its own right, may not be as generalizable as that of residents in other neighborhoods.
Comparison neighborhoods were selected at varying distance from the new stations, ranging from ½ to more than 2 miles in distance. They were chosen from areas with similar characteristics to the experimental areas, but they were also located along corridors that have been identified for future light rail lines by the Los Angeles Metropolitan Transit Authority (LAMTA). By doing this, we hoped to lay the groundwork for future longitudinal studies of travel behavior in these corridors as well. The first set of comparison neighborhoods used in the study extended south from the Expo/Crenshaw station along the proposed Crenshaw light rail line. The second set was chosen within a ½ mile radius of the Expo Line National/Palms station, which is the easternmost station of Expo Line Phase 2, and the first stop beyond the Expo Line Phase I Culver City station.
We chose the study corridor and control neighborhoods to be demographically similar, to approximate a treatment – control group design where the treatment group, within ½ mile of new stations, gets an improvement in access to light rail, and the control group, being more distant, does not benefit as much from the new Expo Line. The control households were drawn from locations over a half-‐mile from an Expo Line Phase I station, and 38 of our households (13 percent) live two miles or farther from one of
the Phase I stations.
Characteristics of the treatment and control group neighborhoods are shown in Table 1. The treatment and control areas are similar in terms of population density, age and income distribution. The most apparent difference between the two is that the control neighborhoods have a higher proportion of African-‐American residents, and a larger proportion of Hispanics live in the experimental neighborhoods.
The experimental neighborhoods were chosen around the six westernmost Expo Line Phase I stations. The six easternmost stations were not chosen because they were also served by either the Blue Line light rail or the Silver Line rapid bus, which provide similar service in conjunction with the new Expo Line service. In addition, the Jefferson/USC, Expo Park/USC, and Expo/Vermont stations were excluded because of their proximity to the University of Southern California campus, which has a very different socio-‐demographic profile than the neighborhoods to the west. Because this area has a high proportion of university students, any travel behavior change, though interesting in its own right, may not be as generalizable as that of residents in other neighborhoods.
Comparison neighborhoods were selected at varying distance from the new stations, ranging from ½ to more than 2 miles in distance. They were chosen from areas with similar characteristics to the experimental areas, but they were also located along corridors that have been identified for future light rail lines by the Los Angeles Metropolitan Transit Authority (LAMTA). By doing this, we hoped to lay the groundwork for future longitudinal studies of travel behavior in these corridors as well. The first set of comparison neighborhoods used in the study extended south from the Expo/Crenshaw station along the proposed Crenshaw light rail line. The second set was chosen within a ½ mile radius of the Expo Line National/Palms station, which is the easternmost station of Expo Line Phase 2, and the first stop beyond the Expo Line Phase I Culver City station.
We chose the study corridor and control neighborhoods to be demographically similar, to approximate a treatment – control group design where the treatment group, within ½ mile of new stations, gets an improvement in access to light rail, and the control group, being more distant, does not benefit as much from the new Expo Line. The control households were drawn from locations over a half-‐mile from an Expo Line Phase I station, and 38 of our households (13 percent) live two miles or farther from one of
the Phase I stations.
Characteristics of the treatment and control group neighborhoods are shown in Table 1. The treatment and control areas are similar in terms of population density, age and income distribution. The most apparent difference between the two is that the control neighborhoods have a higher proportion of African-‐American residents, and a larger proportion of Hispanics live in the experimental neighborhoods.
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