Evaluation of Pedestrian Service Level for Sidewalks Based on BP-PLS Model

doi:10.3969/j.issn.1674-0696.2014.03.25

Journal of Chongqing Jiaotong University(Natural Science) ›› 2014, Vol. 33 ›› Issue (3): 115-118.DOI: 10.3969/j.issn.1674-0696.2014.03.25

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Evaluation of Pedestrian Service Level for Sidewalks Based on BP-PLS Model

Li Jia ¹ , Deng Min²

1.Xi' an Municipal Engineering Design & Research Institute , Xi' an 710068 , Shaanxi , China; 2.Hechuan District Municipal Facilities Management Office , Chongqing 401520 , China

Received:2013-02-26 Revised:2014-03-07 Online:2014-06-15 Published:2015-01-22

用BP-PLS 方法评价城市路侧带行人服务水平

李嘉，邓敏

1.西安市政设计研究院，陕西西安 710068;2.合川区市政设施管理处，重庆401520

作者简介:李嘉(1978—)，男，陕西宝鸡人，工程师，硕士，主要从事城市道路与交通工程方面的研究。E-mail:jlee79@126.com

Abstract

Abstract: BP-PLS model was used to evaluate the pedestrian service level for sidewalks. The method was used with the advantage that the neural networks could correctly characterize the non-linear relationship between the evaluation results and evaluation indicators. The PLS was used to make up the defects of BP model relating the determination of node numbers for hidden layers and the weights initialization method. The case study shows that the BP-PLS model has a good capability for fitting and forecasting , which can be used to evaluate the pedestrian service level for sidewalks

Key words: traffic engineering, BP-PLS model, pedestrian service level for sidewalks

摘要： 用BP神经网络偏最小二乘法(BP-PLS)对路侧带行人服务水平(PLOS)进行评价;利用了神经网络能够很好地描述评价结论与评价指标之间非线性关系的特性;偏最小二乘法弥补了BP模型在确定隐含层节点数和初始权值方法上的不足。案例验证表明:BP-PLS模型具有很好的预测效果和较高的拟合精度，可以作为一种行人服务水平评价方法。

关键词: 交通工程, BP-PLS模型, 路侧带行人服务水平

CLC Number:

U491.4

Li Jia , Deng Min. Evaluation of Pedestrian Service Level for Sidewalks Based on BP-PLS Model[J]. Journal of Chongqing Jiaotong University(Natural Science), 2014, 33(3): 115-118.

李嘉，邓敏. 用BP-PLS 方法评价城市路侧带行人服务水平[J]. 重庆交通大学学报（自然科学版）, 2014, 33(3): 115-118.

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Evaluation of Pedestrian Service Level for Sidewalks Based on BP-PLS Model

用BP-PLS 方法评价城市路侧带行人服务水平

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