Estimating Base Saturation Flow Rate for Selected Signalized Intersections in Al-Najaf City
نویسندگان
چکیده
The correct saturation flow rates for the specific circumstances must be used to calculate delays and level of Service at intersections. As a result lack local data, practitioners would often use default values from overseas software developers. Base rate is an important factor timing traffic signals. Despite 1, 900 pc/h/ln number suggested by Highway Capacity Manual (HCM), base differs city city, dependent on driving habits conditions. result, it's crucial estimate, given climate. erroneous decisions may made that have incorrect results. This study attempts estimate in Al-Najaf City. following situations were observed: Turning movement (through or right); Gradient (Up down); Number through lanes; Speed limit (60 80 km/h). mean headway total 9931 moving vehicles 187 lineups was calculated 1.55. basic therefore determined 2, 323 pc/h/ln. substantially higher than proposed HCM, but it comparable results other nations with similar conditions habits. show significant differences between when movements are different terms above characteristics. Recommendations regarding most appropriate under
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ژورنال
عنوان ژورنال: E3S web of conferences
سال: 2023
ISSN: ['2555-0403', '2267-1242']
DOI: https://doi.org/10.1051/e3sconf/202342703044