Showing 1 – 9 of 9 results.
Curated
Simple Crosstabs
Wastewater Epidemiology to Examine Stimulant Trends, Kentucky, 2019-2023 (ICPSR 39248)
Released/updated on: 2025-05-29
Geographic coverage: United States, Kentucky
Time period: 2019-01-01--2023-12-31
Wastewater-based epidemiology (WBE) is a scientific approach that allows researchers to monitor population drug exposures by analyzing trace drug residues in untreated wastewater. The Wastewater Epidemiology to Examine Stimulant Trends (WeTEST) project used WBE to develop a wastewater surveillance system at seven traffic rest areas and truck stops along interstate highways passing through Kentucky. This data collection includes one dataset reporting the results of the WeTEST highway surveillance system and four additional datasets reporting trends in stimulant use and related incidents in Kentucky.
Curated
Simple Crosstabs
2000 Sacramento Area Household Travel Survey (ICPSR 34777)
Released/updated on: 2013-09-06
Geographic coverage: Sacramento, United States, California
Time period: 2000-02-01--2000-06-30
The 2000 Sacramento Area Household Travel Survey, like all recent household travel surveys, relied on the willingness of area residents to complete diary records of their daily travel for a specified day. During their travel day, participating household members were asked to record travel information in a travel diary for the specified 24-hour period. The information documented by respondents includes trip activities, mode of transportation, trip times, and trip location. Demographic information includes gender, age, whether the respondent held a valid driver's license, whether the respondent was a student, employment status, household income, whether the respondent owned or rented a home, and household size.
Curated
Simple Crosstabs
Bay Area Travel Study, 1996 (ICPSR 34797)
Released/updated on: 2013-08-22
Geographic coverage: San Francisco, United States, California
Time period: 1996-01-01--1996-12-31
The purpose of the 1996 Bay Area Travel Study was to survey households in California's nine county Bay Area (including Oakland, San Francisco, and San Jose) to collect information on activities and travel in the area. This study focused on households who used the Bay Bridge corridor, either by driving or using transit. The 1996 Bay Area Travel Study varies from other household travel surveys in that households were asked to record all of their activities for a specific two-day period, rather than complete a 24-hour travel log. Respondents were asked to report detailed information regarding their travel, including trip locations, mode of transportation, trip start and end times, trip purpose, and trip activities. Demographic variables include gender, age, employment status, whether the respondent held a valid driver's license, occupation, whether the respondent was a student, income, education level, ethnicity, whether the respondent had a disability, and whether the respondent was a volunteer.
Curated
Simple Crosstabs
Baltimore Travel Survey, 1977 (ICPSR 34418)
Released/updated on: 2013-08-20
Geographic coverage: Baltimore, United States, Maryland
Time period: 1977-05-01--1977-06-30
The Baltimore Travel Survey, 1977, is a comprehensive collection of demographic characteristics and travel patterns for 967 households in Baltimore, Maryland. The survey was conducted in May and June of 1977; survey results have been maintained and distributed by the United States Federal Highway Administration. Survey participants were asked to provide detailed household information, including length of residency at current address, number of household occupants, type of dwelling unit, number of vehicles available to household occupants, and the body type of each vehicle. Respondents were also asked to provide information on their travel behavior during a 24-hour assessment period, including trip duration and frequency, trip purpose, departure and arrival times, mode of transportation, number of passengers, and parking cost. Demographic information for this collection includes age, sex, disability, race, spoken language, marital status, income, and educational attainment.
Curated
Simple Crosstabs
Transportation for the 21st Century Household Travel Survey (Philadelphia, 2000) (ICPSR 34759)
Released/updated on: 2013-08-13
Geographic coverage: United States, Delaware, New Jersey, Philadelphia, Pennsylvania
Time period: 2000-03-01--2000-12-31
Household travel surveys such as the Transportation for the 21st Century Household Travel Survey (Philadelphia 2000) are used to obtain information about work and non-work trip generation, trip distribution, modal choice, and traffic assignment as well as to obtain data on average vehicle occupancy. The study area for this travel survey consisted of the Pennsylvania counties of Bucks, Chester, Delaware, Montgomery, and Philadelphia (along with a small portion of Berks County); the New Jersey Delaware Valley counties of Burlington, Camden, Gloucester, and Mercer; and the South Jersey counties of Atlantic, Cape May, Cumberland, and Salem. The resultant data set contains demographic and travel data on 5,677 households in the 14-county study area. Of the 5,677 households that participated in the study, 2,666 were from the Delaware Valley region of Pennsylvania, 1,551 were from the Delaware Valley region of New Jersey, and 1,460 were from Southern Jersey. The Transportation for the 21st Century study relied on the willingness of area residents to complete diary records of all travel for a 24-hour period. It was based on telephone interviews of randomly selected households from the 14-county study area. Participating households were assigned a specific "travel day" or 24-hour period on which to record their travel and activities. Demographic variables include the number of vehicles in the household, household income, age, gender, whether respondents held a valid driver's license, whether respondents had a disability, and employment status.
Curated
Simple Crosstabs
Spokane and Kootenai County Regional Travel Survey, 2005 (ICPSR 34690)
Released/updated on: 2013-07-08
Geographic coverage: United States, Spokane, Washington, Idaho
Time period: 2005-04-01--2005-06-30
The Spokane and Kootenai County Regional Travel Survey, 2005, is a comprehensive survey of the travel patterns of households in Spokane County, Washington and Kootenai County, Idaho. The survey was conducted for the Spokane Regional Transportation Council (SRTC) over a three-month period, from April through June 2005. The data are drawn from 1,828 households within Spokane and Kootenai counties and contain information about 4,488 household members, 3,974 vehicles, and details regarding 19,638 trips made during a 24-hour period. The survey relied on the willingness of study area residents to (1) provide demographic information about the household, its members, and its vehicles during the recruitment stage, and (2) record all travel for a specific 24-hour period during the retrieval stage. Respondents were asked to provide detailed household information, including number of occupants, type of dwelling unit, number of vehicles available to household occupants, as well as the year and body type for each vehicle. Following the initial recruitment phase, survey participants received mailed questionnaires to aid in documenting travel information during the 24-hour assessment period. Respondents were instructed to record their mode of transportation, trip purpose, departure and arrival times, number of passengers, and parking cost. Demographic information for this study includes age, income, education, and employment status.
Curated
Simple Crosstabs
Washoe County Travel Characteristics Study, 2005 (ICPSR 34683)
Released/updated on: 2013-07-02
Geographic coverage: United States, Nevada
Time period: 2005-10-01--2005-11-30
The Washoe County Travel Characteristics Study, 2005, is a comprehensive survey of the travel patterns of households in Washoe County, Nevada. The survey was conducted for the Regional Transportation Commission (RTC) over a two-month period, from October through November 2005. The data are drawn from 1,174 households within the RTC planning area and contain information about 2,679 household members, 2,138 vehicles, and details regarding 11,077 unlinked trips. The survey relied on the willingness of regional households to (1) provide demographic information about the household, its members, and its vehicles, and (2) have all household members record all travel and activity for a specific 24-hour period. Respondents were asked to provide detailed household information, including number of occupants, type of dwelling unit, number of vehicles available to household occupants, as well as the year, make, model, and fuel type for each vehicle. In order to identify households eligible to participate in the voluntary GPS portion of data collecting, respondents were asked whether their vehicle(s) had a working cigarette lighter or power outlet. Following the initial recruitment phase, survey participants received mailed questionnaires to aid in documenting travel information during the 24-hour assessment period. Respondents were instructed to record their mode of transportation, trip purpose, departure and arrival times, number of passengers, and parking cost. Demographic information for this study includes age, sex, race, disability, income, and employment status.
Curated
Washington Post Poll: DC-Region Traffic Poll, January 2005 (ICPSR 4316)
Released/updated on: 2007-04-25
Geographic coverage: District of Columbia, United States, Virginia, Maryland
Time period: 2005-01-01--2005-01-31
This special topic poll, fielded January 27-31, 2005, was undertaken to assess public opinion on traffic congestion in the Washington, DC, area. Respondents who commuted in the greater Washington, DC, area were asked about traffic conditions in the region, their primary means of transportation to and from work, the length of their commute, what they liked and disliked most about their commute, and whether they had ever relocated or adjusted their work schedule to improve their commute. Those polled rated the different types of public transportation available in the area, how often they used the Metrorail subway system, and why they did not ride it more often. Views were sought on proposals to expand the Metrorail system and build new highways in the area, sources of funding for transportation projects, and whether measures such as high occupancy vehicle lanes, adjustable tolls, and building new roads were effective in easing traffic congestion. Respondents were also asked about the type of vehicle they drove, how often they traveled by car, how much time they spent driving, and how often driving invoked feelings such as independence, relaxation, and anger. A series of questions asked respondents how often they and others were guilty of behaviors such as speeding or road rage, and whether they engaged in activities such as eating or reading while driving. Additional topics addressed the use of automatic cameras at traffic lights and stop signs and whether existing traffic laws were too tough on teenage drivers. Demographic variables included sex, age, race, household income, education level, and political party affiliation.
Curated
Partially restricted
North Carolina Highway Traffic Study, 2000-2001 (ICPSR 4078)
Released/updated on: 2006-03-30
Geographic coverage: North Carolina, United States
Time period: 2000-01-01--2001-12-31
This study investigated whether the North Carolina State Highway Patrol (NCSHP) practiced racial profiling. The NCSHP provided data on all vehicular stops (Parts 1 and 2), written warnings (Part 3), and citations (Part 4) its officers issued in 2000. This included data on what the stops or tickets were for, the race, sex, and age of the driver, and the make, model, and year of the car being driven. Data on accidents in 2000 (Part 5), also obtained from the NCSHP, were used to examine whether there were racial disparities in unsafe driving practices. These data included information about what caused the accident and the race, sex, and age of the driver. The NCSHP also supplied data on all officers who worked for the NCSHP in 2000 (Part 6), including their race, age, and rank. The data in Part 6 can be linked to the data in Parts 3 and 4. In addition, two surveys of North Carolina drivers were conducted to gather information on reported typical driving behaviors that may influence the probability of being stopped, and to gather information about stops conducted by law enforcement agencies across the state. One was conducted using a sample of North Carolina drivers who had recently renewed their licenses (Part 7), and the other used a sample of North Carolina drivers who were ticketed for speeding between June 1, 1999, and June 1, 2000 (Part 8).