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Quantitative

Reductions in Air Pollution

Data Collection The Air Quality Index (AQI) website provides a lot of background information on air pollution; it is also a great resource for collating data on the level of air pollutants. The AQI is designed to help one understand what levels of air pollution are considered unhealthy and then take steps to protect their

Adrenaline and Cortisol Levels

Data Collection Data on adrenaline and cortisol levels are often collected from doctors or health care facilities; this can be done by taking a few blood samples or measuring the adrenaline and cortisol levels in the urine or saliva. However, accurate data is often collated using blood tests. To avoid errors during the measurement and

Time Spent Searching For Parking

Data Collection INRIX, a global transportation intelligence company, has released its 2019 Global Parking Index. The study found that the total cost of wasted time and fuel from searching for parking amounts to $345 billion each year. Although Americans spend so much time looking for parking, the majority (60%) said they were not willing to

Travel Times and Time Spent in Congestion

Data Collection The National Travel Survey (NTS) collects information on people’s travel habits in England and Wales, including how often they travel, what modes of transport they use, and why they make particular journeys. In order to collect accurate and representative data, the NTS uses a range of methods, including face-to-face interviews, telephone interviews, and

Increase in Daily Bicycle or Walking Trips

Data Collection In the collection of data on the number of bicycle trips, the automatic bicycle counters (e.g. pneumatic tubes laid across the roadway, piezo-electric sensors embedded in the roadway) can be utilized to estimate the total number of users along a route section. Additionally, human or mechanical counts and labor-intensive surveys are used to

Number of Car Commuters Now Using Active Modes

Data Collection Data on the number of commuters using active transportation can be collected by counting people on bikes or the number of pedestrians crossing busy intersections. However, the most accurate way to collect this data is through surveys. Surveys can be conducted online, in person, or by mail. When conducting a survey, it is

Decrease in Miles Between Available Facilities

Data Collection Online mapping tools, such as Google Maps or MapQuest, are often used to collect data. Simply enter the address of the facility into the search bar and click on the “Get Directions” button. The site will then provide you with directions, including the distance in miles. Google Maps provides data on the distance

Number of Missed Appointments

Data Collection The Centers for Disease Control and Prevention (CDC) uses a variety of methods to collect data on missed appointments. The CDC also uses data from the National Ambulatory Medical Care Survey (NAMCS) to examine this. The NAMCS is a national probability sample survey of visits to non-federally employed, office-based physicians that collects data

Number of New Users of Public Transit and Active Transportation Modes

Data Collection The data on the number of new public transit users can be obtained from the National Transportation Statistics (NTS) database. The NTS database is a sizable online document that includes more than 260 data tables, data source and accuracy statements, a glossary, and a list of acronyms and initialisms. In addition to providing

Change in VMT Before and After Intervention  

Data Collection The official Streetlight website is one example that contains data about the VMT per capita. Every day, Streetlight calculates the total number of miles driven by vehicles (VMT) throughout all 50 states in the United States. Examples Personal Transportation Factsheet by the University of Michigan In a new study, researchers at the University

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