Common use of Data Sources Clause in Contracts

Data Sources. ITHIM required 14 calibration data items covering underlying disease burdens, travel habits, physical activity participation, air pollution levels, and traffic injuries and fatalities in the study area. Table 6 summarizes the data items and the sources. Source Calibration Data Item Units Stratification San Francisco Bay Area Travel Survey 2000 Regional Travel Characteristics (MTC, 2004) Per capita mean daily travel distance Miles/person/day Travel mode Per capita mean daily travel time Minutes/person/ day Travel mode Ratio: per capita mean daily active transportation time Walk, bike, age, and sex Standard deviation of mean daily active transportation time Minutes/person/ day Walking speed Miles/hour Ratio of daily per capita bicycling time to walking time Personal auto travel distance and time Miles and hours/day Driver and passenger MTC’s Travel demand model (MTC, 2017) Vehicle miles traveled (VMT) by facility type Miles/day Travel mode and road type US Census Distribution of population by age and gender % Age and sex California Health Interview Survey (UCLA, 2008) Per capita weekly non-travel related physical activity, expressed in Metabolic Equivalent Task (MET) hours MET-hours/ week Age and sex Age-sex specific ratio of disease- specific mortality rate between the Bay area and USA. Disease group, age, and sex Proportion of colon cancers from all colorectal cancers California Highway Patrol (CHP, 2008) and Transportation Injury Mapping System (SafeTREC, 2020) Serious and fatal injuries between a striking vehicle and a victim vehicle in road traffic collisions Injuries Severity, striking mode, victim mode, and road type EMFAC 2007 (CARB, 2020b) Emissions of PM2.5 attributable to light-duty vehicles Tons/day