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
Quantitative
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
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
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
Engine Noise and Changes Due to EVs
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
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
Reductions in Ambient Temperature
Data Collection Several online databases can provide data on temperature measurement. A weather station is also a good source that measures and stores data on measured ambient temperature changes . In addition, online temperature trackers are good sources of data collection . Examples Small increases in green spaces can offset temperature rise According to the
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
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
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,
