ارزیابی تاثیر وسایل نقلیه سنگین بر جریان ترافیک و میزان انتشار آلاینده‌های ناشی از آن در شبکه‌های درون شهری با استفاده از شبیه‌سازی ترافیکی

ارزیابی تاثیر وسایل نقلیه سنگین بر جریان ترافیک و میزان انتشار آلاینده‌های ناشی از آن در شبکه‌های درون شهری با استفاده از شبیه‌سازی ترافیکی

نوع مقاله : علمی - پژوهشی

چکیده

امروزه یکی از مشکلات اصلی کلان‌شهر‌ها افزایش شدید آلودگی هوا است. جریان ترافیک نیز مهم ترین عامل افزایش انتشار آلاینده‌های زیست محیطی در مناطق درون شهری به شمار می‌رود، بنابراین مدیریت ترافیک می‌تواند به طور چشمگیری غلظت این آلاینده‌ها را کاهش دهد. با توجه به پیچیدگی رابطه بین جریان ترافیک و انتشار آلاینده‌ها، استفاده از شبیه‌سازی ترافیکی به منظور برآورد میزان انتشار آلاینده‌ها از جریان ترافیک ضروری به نظر می‌رسد. این مقاله به بررسی وضعیت جریان ترافیک و آلودگی هوای یک شبکه ترافیکی تحت تاثیر وسایل نقلیه سنگین می‌پردازد. شبکه مورد مطالعه این پژوهش قسمتی از منطقه 7 شهرداری تهران است. شبکه مورد مطالعه با استفاده از نرم افزار AIMSUNشبیه سازی شده و میزانانتشار آلاینده‌های مختلف، زمان تأخیر، زمان توقف و میانگین سرعت جریان ترافیک تحت حضور وسایل نقلیه سنگین مورد ارزیابی قرار می‌گیرد. از جمله نتایج این تحقیق می‌توان به افزایش 11 و 12 درصدی غلظت آلاینده‌های و و21 درصدی نرخ زمان توقف در شبکه تحت حضور وسایل نقلیه سنگین اشاره کرد.

کلیدواژه‌ها

20.1001.1.20086598.1393.5.4.3.1

عنوان مقاله [English]

Study of the Effects of Heavy Vehicles on the Flow of Urban Traffic Network and Emission Based on Traffic Simulation

چکیده [English]

Nowadays, air pollution in metropolitan areas is threatens people’s health. Considering severe decrease in cities’ air quality and dangers of such pollution for people’s health, recognition of the aspects of this problem is of great importance. Within urban areas, congestion flow is the most important factor in air pollution. Therefore, management of urban traffic network can impressively reduce environment contaminants. With regard to the significance of this problem and the complexity of relationship between traffic and emissions, traditional tools of traffic engineering cannot analyze traffic network flow. This research investigates the flow of traffic and the air pollution made by one of the traffic networks in the 7^th region of Tehran municipality. Using AIMSUN software, this network is simulated and the effects of Heavy Vehicles on the emission concentration, travel time, delay time, stop time and average speed of traffic flow are analyzed and recorded. The results show that the average increase rate of , , PM and VOC are respectively 11%, 121%, 12% and -35%. Furthermore, travel time, delay time, stop time and fuel consumption are increase due to Heavy Vehicles.

کلیدواژه‌ها [English]

Simulation
Air pollution
Traffic management
Traffic Flow
travel time
Aimsun Software

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