Data Collection A sound level meter, which can be placed near the vehicle, can be used to measure on-road noise levels. Other options are to use microphones placed inside the car or sensors placed on the vehicle itself to measure the vibrations caused by engine noise. Whichever method is used, it is important to ensure
Quantitative
Decreased Vehicle Miles Traveled and Vehicle Speeds
Data Collection The National Highway Traffic Safety Administration (NHTSA) keeps track of VMT data, as well as the Federal Highway Administration (FHWA). Additionally, there are private companies that keep track of this data, such as Inrix and TomTom. The Census Bureau’s American Community Survey also makes VMT data accessible to the public. Examples National Institute
Outdoor and Indoor Noise Levels
Data Collection The Driver and Vehicle Licensing Agency (DVLA) in the UK is an example of an organization that collects and stores data on noise levels from a variety of sources. This includes data from braking and acceleration tests, as well as data from on-road monitoring. The DVLA also uses this data to produce noise
The Number of People Who Violate Traffic Laws
Data Collection The use of traffic cameras is used to collect data on the number of people who violate traffic laws. These cameras can be placed at intersections or other busy areas and record footage of vehicles passing through. Law enforcement officials can then review this footage to identify any potential violations. Additionally, insurance companies
Reduced Speed Limits
Data Collection Data on speed limits can be collected from various sources, including police departments, traffic or highway authorities, or insurance companies. Police departments often use data on vehicle speeds to enforce speed limits and target areas for enforcement. This data can also be used to support prosecution in court cases. Highway authorities may use
Number of People Using the Green Space
Data Collection Data can be collected through surveys, questionnaires, and observation. This involves counting the number of people using the space over a period of time. Additionally, green space usage can be monitored using technology such as CCTV cameras or sensors. This data can then be used to understand patterns of usage and identify areas
Number of People With Access to Green Space
Data Collection The methodology for collecting data on this indicator will vary depending on the context in which it is being used. For example, in an urban area, a study might focus on the number of people living within a certain distance of a green space. In a rural area, data might be collected on
Ground Level Temperatures Before and After the Intervention
Data Collection Data on ground level temperature can be collected from weather stations. When using weather station data, it is important to make sure that the station is properly calibrated. Most weather stations come with instructions on how to do this. Once the station is calibrated, readings can be collected from the “outside” temperature sensor,
Reductions in Heat Waves Frequency and Intensity
Data Collection Data on the intensity and frequency of heat waves can be collected from the official website of the National Oceanic and Atmospheric Administration (NOAA). NOAA provides timely data about climate changes and heat waves. The National Oceanic and Atmospheric Administration (NOAA) monitors heat waves across the United States through a network of weather
Reduction in Number of Motor Vehicles Commuting in an Area
Data Collection Data on the number of vehicles can be collected from several databases. For example, the Department of Motor Vehicles has a special database that stores data on the number of vehicles on the road. Also, the National Vehicle Database uses various methods to collect data on the number of vehicles on the road.
