Processing/Expansion CTG cleaned and post-processed the survey records. As part of this process, the following records were removed: Records with as a response on both ends of the trip ‘home’ Records without information on access/egress number of vehicles in the household or number of people in the household Table 35 shows the number of records remaining after applying each of the above-mentioned screening criteria. : Post-processing the Survey Records Total Northeast Garage Central Garage South Garage # of % of # of % of # of % of # of % of records ridership records ridership records ridership records ridership Target average 85,527 100% 65,800 100% 58,887 100% 210,214 100% weekday ridership Total surveys 4,526 5% 2,475 4% 2,414 4% 9,415 4% returned Survey records remaining after deleting records with… "Home" on both trip 4,294 5% 2,366 4% 2,338 4% 8,998 4% ends Missing access/ 4,294 5% 2,366 4% 2,338 4% 8,998 4% egress mode Missing number of 3,149 4% 2,052 3% 1,595 3% 6,796 3% vehicles in household Missing number of 2,779 3% 1,949 3% 1,514 3% 6,242 3% household people Number of survey 2,779 3.2% 1,949 3.0% 1,514 2.6% 6,242 3.0% records used for final expansion Records with 1,412 1.7% 0 0.0% 689 1.2% 2,101 1.0% geocodable origin & destination locations The surveyed routes account for 210,214 average weekday boardings on MDT buses. Useable survey records for the final expansion accounted for approximately 3% of this ridership. Each of the three garage surveys were expanded by route, direction and time of day (peak: 6-9AM, and off-peak: 9AM-3PM, 7PM-6AM). Since some of the routes were not surveyed in any of the three surveys, the various tabulations, such as trips by purpose, access mode, auto availability etc. were eventually scaled to the full
Processing/Expansion CTG cleaned and post-processed the survey records. As part of this process, the following records were removed: Records with ‘home’ as a response on both ends of the trip Records without information on access/egress number of vehicles in the household or number of people in the household Table 35 shows the number of records remaining after applying each of the above-mentioned screening criteria. : Post-processing the Survey Records Northeast Garage Central Garage South Garage Total # of records % of ridership # of records % of ridership # of records % of ridership # of records % of ridership Target average weekday ridership 85,527 100% 65,800 100% 58,887 100% 210,214 100% Total surveys returned 4,526 5% 2,475 4% 2,414 4% 9,415 4% Survey records remaining after deleting records with… "Home" on both trip ends 4,294 5% 2,366 4% 2,338 4% 8,998 4% Missing access/ egress mode 4,294 5% 2,366 4% 2,338 4% 8,998 4% Missing number of vehicles in household 3,149 4% 2,052 3% 1,595 3% 6,796 3% Missing number of household people 2,779 3% 1,949 3% 1,514 3% 6,242 3% Number of survey records used for final expansion 2,779 3.2% 1,949 3.0% 1,514 2.6% 6,242 3.0% Records with geocodable origin & destination locations 1,412 1.7% 0 0.0% 689 1.2% 2,101 1.0% The surveyed routes account for 210,214 average weekday boardings on MDT buses. Useable survey records for the final expansion accounted for approximately 3% of this ridership. Each of the three garage surveys were expanded by route, direction and time of day (peak: 6-9AM, and off-peak: 9AM-3PM, 7PM-6AM). Since some of the routes were not surveyed in any of the three surveys, the various tabulations, such as trips by purpose, access mode, auto availability etc. were eventually scaled to the full
SERPM_8_Transit_Surveys_10082017.docx