Among them, industrial land accounted for 70.16% of carbon emissions, mainly concentrated in three industrial towns. The vector maps of Zhangdian City show that in 2021, the total carbon emissions and carbon absorptions were 4.76 × 10 9kg and 4.28 × 10 6kg respectively. The results show that the vector carbon emissions map can help identify the key carbon reduction land patches and the impact factors of carbon emissions. ![]() In addition, the differences between different streets were analyzed, and the carbon emissions ratio of the land patch was compared. The vector maps and spatial autocorrelation of carbon emissions in Zhangdian City, China were explored using multi-source data. In this study, a vectorization method for spatial allocation of carbon emissions at the land patch level was proposed. However, little research has focused on carbon emissions maps at the land patch level, which makes poor integration with small and medium-sized urban planning based on land patches. 3Zibo Urban Planning Design Institute Co., Ltd., Zibo, ChinaĪn accurate carbon emissions map is of great significance for urban planning to reduce carbon emissions, mitigate the heat island effect, and avoid the impact of high temperatures on human health.2School of Architectural Engineering, Tongling University, Tongling, China.1School of Architecture and Urban Planning, Shandong Jianzhu University, Jinan, China.By eliminating idling at traffic lights, Carmel's roundabouts remove the equivalent of 5,000 cars' worth of carbon dioxide, while saving the city's drivers an estimated $14 million in gas annually, according to former city engineer Michael McBride.Xiaoping Zhang 1 *, Qinghua Liao 2 *, Hu Zhao 1 and Peng Li 3 "As traffic fatalities continue to rise in the U.S., we really need to use all the tools in our toolbox, and roundabouts are one of those tools that we've seen be effective," said Jessica Cicchino, vice president of research at the Insurance Institute for Highway Safety.Īnd there's an environmental benefit as well. Busy intersections, like highway exits, saw an 84% drop. The Insurance Institute for Highway Safety found that Carmel's switch to roundabouts cut injury crashes in the city by nearly half. There has been a bit of a learning curve for drivers, but Carmel has been able to remove traffic lanes even as its population has more than quadrupled. Roundabouts don't require electricity, so they continue to function during power outages and severe weather that can black out a traditional stoplight intersection. The roundabouts keep vehicles flowing, but they also slow traffic down, and slower traffic makes the roads safer for pedestrians and bicyclists. "We can keep our roads more narrow, and that's better for the environment. "We don't have to pave over paradise," Brainard said. "A roundabout would have moved 30 cars through in the same amount of time."īy 2025, Carmel, home to more than 100,000, will have just one stoplight. "Two cars are going through this intersection," he said while navigating a standard intersection. Mayor James Brainard said they make the community safer and greener.ĬBS News rode along with Brainard through some of the roundabouts, where he pointed out why he prefers traffic circles over intersections with stoplights. The city is home to 142 roundabouts and counting - more than any other city in the country. Carmel, Indiana, is sending drivers for a loop - by design.
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