/cdn.vox-cdn.com/uploads/chorus_image/image/57339195/6496082741_3b7cdd3d0b_b.0.jpg "chicago traffic realtime")
Since temperatures over 84☏ are typically required for ozone to form, it’s much more prevalent in the summer than winter. Ozone is a harmful gas pollutant and key component of smog, created when precursor pollutants, nitrogen oxides (NO x), and volatile organic compounds (VOCs) react in warmer temperatures and sunlight. In addition to PM2.5 pollution, Chicago has also had difficulty complying with federal ozone standards. This ranking places Chicago air quality in a slightly worse position than Los Angeles air quality (12.7 μg/m 3), a city well known for its pollution challenges. Chicago had not experienced such high annual exposure levels since 2012.Ĭhicago PM2.5 pollution ranks worst in the state of Illinois for particle pollution and 79th nationally out of 1517 metropolitan areas in the United States. In 2019, Chicago averaged an annual PM2.5 level of 12.8 μg/m 3, thereby breaching both the WHO target and the US EPA target. The World Health Organization (WHO), meanwhile, employs a more stringent standard, recommending that exposure remain below 10 μg/m 3 annually. The US EPA recommends that annual PM2.5 exposure not exceed 12 μg/m 3. PM2.5 pollution is fine particle pollution with a range of chemical compositions that measures 2.5 microns in diameter or less. Fine particulate matter (PM2.5) and ozone represent two of the most common ‘main pollutants’ responsible for a city’s AQI due to the weight the formula ascribes to them for their potential harm and prevalence at high levels. The pollutant with the highest individual AQI becomes the ‘main pollutant’ and dictates the overall air quality index. The US Environmental Protection Agency (EPA) defines “moderate” air quality as air potentially unhealthy to sensitive groups including children, the elderly, and people with pre-existing cardiovascular or respiratory health conditions.ĪQI ratings are calculated by weighting 6 key criteria pollutants for their risk to health.
#Chicago traffic realtime driver
The article details other factors that affect driver speeds and pedestrian safety, such as road width, residential density, and proximity to expressways-roads disproportionately built through historically Black neighborhoods.In 2019, Chicago averaged an air quality index (AQI) of 52 (“moderate”).
Instead, experts point to other traffic calming measures, such as medians and speed bumps, that can slow drivers. While research shows traffic cameras can have a positive impact on driving behaviors, some critics call them a cash grab that disproportionately harms low-income residents. Chicago mayor Lori Lightfoot's policy chief, Dan Lurie, has said "the administration has been grappling with the 'twin challenges' of improving traffic safety while 'very intentionally ensuring that the burdens of fines and fees as a result of those kinds of efforts do not fall disproportionately on Black and brown residents.'" Lurie acknowledged the need to improve road infrastructure as part of the effort to reduce traffic fatalities and protect pedestrians. Traffic camera programs in other cities, such as Rochester, Miami, and Washington, D.C., have shown similar disparities in ticketing, calling into question the supposed fairness of the devices, which have been touted by some supporters as a "race-neutral" way to reduce potentially violent police interactions.
#Chicago traffic realtime license
"The consequences have been especially punishing in Black neighborhoods, which have been hit with more than half a billion dollars in penalties over the last 15 years, contributing to thousands of vehicle impoundments, driver’s license suspensions and bankruptcies, according to ProPublica’s analysis." The traffic camera program monitors almost 300 locations distributed "roughly evenly" in the city's different neighborhoods. In 2020, when Black and Latino workers were more likely to keep going to work while many white workers worked from home, the ticketing rate in Black neighborhoods jumped to three times that of white areas.
#Chicago traffic realtime zip
An investigation from ProPublica's Emily Hopkins and Melissa Sanchez reveals that Chicago's purportedly neutral traffic enforcement cameras issued citations to households in majority Black and Latino ZIP codes at a rate twice as high as in white neighborhoods.
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