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Traffic congestion and smog are hot topics in recent years. This study analyzes the impacts of road traffic characteristic parameters on urban air quality quantitatively based on aerosol optical thickness (AOD) and geographical weighted regression (GWR) models, including the road network density, road area occupancy, intersection number, and bus network density as main factors. There are some major research findings. Firstly, there exists a strong positive correlation between the peak congestion delay index (PCDI) and air quality, the correlation has R2 values of up to 0.4962 (R 0.70). Secondly, GWR refines the local spatial changes in the AOD and the road parameters, and the correlation R2 based GWR model all above 0.6. The correlation between AOD and the road area occupancy was the highest, and the correlations with the bus network density and the intersections number were higher than that with the road network density. Thus, bus route planning, bus emission reduction, road network planning, and signal timing (at intersections) have a greater impact on air quality than other policy, especially in areas with traffic jams. The results of this study could provide theoretical support for traffic planning and traffic control, and is promising in practice.

We aim to challenge assumptions made about the use of English as a “lingua franca” in scientific-academic contexts, identify the impact of such assumptions on trajectories of knowledge production and uptake, and legitimize the use of multiple languages for transnational scholarly exchange. We set out ten principles: Using English as a scientific-academic “lingua franca” does not always promote inclusion; A language positioned as a scientific-academic “lingua franca” can act as a language of domination; Positioning English as the “lingua franca” policy may discourage translations and exclude participation; Policies which position English as being the contemporary scientific-academic “lingua franca” may convey the idea that knowledge produced in English is the only knowledge that exists; The imposition of English as a presumed scientific-academic “lingua franca” is a manifestation of the unequal distribution of knowledge production and uptake; Languages/varieties function as powerful resources for knowledge making; Choosing a language for publishing or presenting is a sociolinguistic right; Choosing a language to publish or present in is a political act; Convention organizers should have the right to promote the language(s) of their choice; Convention organizers and scholars should be as creative and sensitive to including as diverse an audience as possible.

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