[1]肖忠斌,王炜,李文权,等.城市高架路下匝道地面联接段最小长度模型[J].东南大学学报(自然科学版),2007,37(6):1071-1076.[doi:10.3969/j.issn.1001-0505.2007.06.026] 　Xiao Zhongbin,Wang Wei,Li Wenquan,et al.Minimum-length-requirement model for expressway off-ramp joint[J].Journal of Southeast University (Natural Science Edition),2007,37(6):1071-1076.[doi:10.3969/j.issn.1001-0505.2007.06.026] 点击复制 城市高架路下匝道地面联接段最小长度模型() 分享到： var jiathis_config = { data_track_clickback: true };

37

2007年第6期

1071-1076

2007-11-20

文章信息/Info

Title:
Minimum-length-requirement model for expressway off-ramp joint

1 东南大学交通学院, 南京 210096; 2 扬州大学建工学院, 扬州 225009
Author(s):
1 School of Transportation, Southeast University, Nanjing 210096, China
2 School of Construction Engineering, Yangzhou University, Yangzhou 225009,China

Keywords:

U491.23
DOI:
10.3969/j.issn.1001-0505.2007.06.026

Abstract:
To augment the capacity of off-ramp joint,a method to calculate its length is presented. With the definition and basic hypothesis of off-ramp joint, the characteristic of its structure and traffic flow are analyzed. From a systematic viewpoint, kinematics, gap-acceptance theory and probability theory are employed to establish the minimum-length-requirement model for expressway off-ramp joint. While modeling, the more difficult traffic maneuver of running off the off-ramp road, finishing its interweaving and running onto the left-turn lane of downstream intersection are taken into consideration comprehensively. For a newly constructed road, the required minimum length can be computed using the model. For an existing road, based on the comparison of the measured value and calculated value, the model is helpful for finding out the reasons of congestion on the off-ramp joint, and taking corresponding improvement measures. Finally, the model is verified to be feasible through comparison with the simulation results of CORSIM(corridor simulation model).

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