Editing Transport in Bangladesh (section)

==== Pollution ====
A significant contributor to air pollution in urban areas is [[motor vehicle emissions]].<ref name=":19">{{Cite journal |last1=Begum |first1=Bilkis A. |last2=Hopke |first2=Philip K. |date=2018 |title=Ambient Air Quality in Dhaka Bangladesh over Two Decades: Impacts of Policy on Air Quality |url=https://aaqr.org/articles/aaqr-17-11-2017aac-0465 |journal=Aerosol and Air Quality Research |language=en |volume=18 |issue=7 |pages=1910–1920 |doi=10.4209/aaqr.2017.11.0465}}</ref> In Bangladesh, pollution severity is exacerbated by a large number of high-polluting vehicles, impure fuel, inefficient land use, and poor traffic management.<ref>{{Cite journal |last=Masud Karim |first=Md |date=1999-09-01 |title=Traffic pollution inventories and modeling in metropolitan Dhaka, Bangladesh |url=https://www.sciencedirect.com/science/article/pii/S1361920999000103 |journal=Transportation Research Part D: Transport and Environment |volume=4 |issue=5 |pages=291–312 |doi=10.1016/S1361-9209(99)00010-3 |bibcode=1999TRPD....4..291M |issn=1361-9209}}</ref> [[Leaded gasoline]] was banned in 1999,<ref name=":19" /> and the change to [[compressed natural gas]] (CNG) cars in early 2000s saved over 4,000 premature deaths in 2009, but their low cost has increased the number of cars on the roads (although CNG price increases may have tempered the increase) and decreased the amount of natural gas available for other purposes.<ref name=":0">{{cite book |last=Sunny |first=Sanwar |author-link=Sanwar Azam Sunny |title=Green Buildings, Clean Transport and the Low Carbon Economy: Towards Bangladesh's Vision of a Greener Tomorrow |publisher=LAP Publishers |year=2011 |isbn=978-3-8465-9333-2 |location=Germany}}</ref>{{Rp|page=234}}

Dhaka is the noisiest city in the world,<ref name="f817">{{cite web |date=27 March 2022 |title=Dhaka world's noisiest city, Rajshahi 4th on list: UN report |url=https://www.thedailystar.net/environment/news/dhaka-worlds-noisiest-city-rajshahi-4th-list-un-report-2991571 |access-date=16 June 2024 |website=The Daily Star}}</ref> with levels 1.3 to 2 times higher than acceptable limits.<ref>{{Cite news |last=Shitu |first=Shanchita |date=26 April 2023 |title=Noise pollution is increasing, exceeding all standards |url=https://www.dhakatribune.com/bangladesh/dhaka/283683/noise-pollution-is-increasing-exceeding-all |access-date=16 June 2024 |work=[[Dhaka Tribune]]}}</ref> The [[Farmgate]] intersection in Dhaka experiences the highest noise pollution at 135.6 [[decibel]]s, while the least polluted area, [[Uttara (neighbourhood)|Uttara]]-14, registers 100.8 decibels, still far above the permissible level.<ref name=":20">{{Cite web |last=Mithu |first=Ariful Islam |date=2019-09-21 |title=Banned, yet ubiquitous |url=https://www.tbsnews.net/feature/banned-yet-ubiquitous |access-date=2024-06-16 |website=The Business Standard |language=en}}</ref> [[Rajshahi]] ranked the fourth noisiest in the world,<ref name="f817" /> while noise levels are also above acceptable limits in other cities like Chittagong,<ref>{{Cite journal |last1=Aziz |first1=Md Abdul |last2=Karim |first2=Ahasanul |last3=Masum |first3=Md Mehedi Hassan |last4=Newaz |first4=Kazi Kader |title=Evaluation of Noise Environment and Noise Mapping with ArcGIS in Chittagong City, Bangladesh |journal=Journal of Korean Society of Environmental Engineers |date=2021 |volume=43 |issue=4 |pages=230–240 |language=English |doi=10.4491/KSEE.2021.43.4.230|doi-access=free }}</ref> [[Sylhet]],<ref name="b253">{{cite journal |last1=Alam |first1=J. B. |last2=Alam |first2=M. Jobair Bin |last3=Rahman |first3=M. M. |last4=Dikshit |first4=A. K. |last5=Khan |first5=S. K. |date=12 March 2006 |title=Study On Traffıc Noıse Level Of Sylhet By Multiple Regression Analysis Associated With Health Hazards |url=https://www.researchgate.net/publication/26488531 |journal=Iranian Journal of Environmental Health Science & Engineering |volume=3 |issue=2 |pages=71–78 |issn=1735-1979 |access-date=16 June 2024}}</ref> [[Comilla]],<ref>{{Cite web |last=Tajmim |first=Tawsia |date=2022-11-08 |title=Noise pollution causing hearing loss in those who work on city roads |url=https://www.tbsnews.net/bangladesh/noise-pollution-causing-hearing-loss-those-who-work-city-roads-528018 |access-date=2024-06-16 |website=The Business Standard |language=en}}</ref> and [[Khulna]].<ref>{{Cite journal |last1=Sultana |first1=Aliza |last2=Paul |first2=Ashok Kumar |last3=Nessa |first3=Meher Un |date=2020-09-14 |title=The Status of Noise Pollution in the Major Traffic Intersections of Khulna Metropolitan City in Bangladesh and its Possible Effect on Noise-Exposed People |url=https://www.ej-geo.org/index.php/ejgeo/article/view/58 |journal=European Journal of Environment and Earth Sciences |language=en |volume=1 |issue=5 |doi=10.24018/ejgeo.2020.1.5.58 |issn=2684-446X}}</ref> Despite a ban on the import of loud hydraulic horns in 2017, they remain in widespread illegal use.<ref name=":20" />