行人步行設(shè)施空間疏散特征指標(biāo)
發(fā)布時(shí)間:2018-06-14 05:57
本文選題:交通工程 + 步行設(shè)施。 參考:《哈爾濱工業(yè)大學(xué)學(xué)報(bào)》2017年09期
【摘要】:為了向步行設(shè)施內(nèi)的疏散行人流提供合理的物理空間布局,研究行人步行設(shè)施空間的疏散特征指標(biāo).首先,根據(jù)步行設(shè)施內(nèi)部空間是否能被行人占據(jù)移動(dòng),將其劃分為行人移動(dòng)空間與障礙物空間,并利用障礙物空間外緣輪廓線間的最短距離確定行人移動(dòng)的瓶頸寬度;然后,基于移動(dòng)瓶頸對(duì)行人移動(dòng)空間的毗鄰劃分,提出了步行設(shè)施行人疏散的移動(dòng)網(wǎng)絡(luò)構(gòu)建方法,將步行設(shè)施空間轉(zhuǎn)化為行人疏散的移動(dòng)網(wǎng)絡(luò);基于行人移動(dòng)距離最短的疏散路徑選擇策略,將移動(dòng)網(wǎng)絡(luò)轉(zhuǎn)化為疏散樹;最后,基于疏散樹的層和節(jié)點(diǎn)及其隸屬關(guān)系,從空間面積、移動(dòng)距離、瓶頸寬度、障礙物布局4個(gè)角度提出了步行設(shè)施空間的疏散特征指標(biāo).進(jìn)而得到評(píng)價(jià)步行設(shè)施空間布局及調(diào)整優(yōu)化障礙物布局的方法,算例分析表明:根據(jù)指標(biāo)對(duì)障礙物的布局進(jìn)行調(diào)整,優(yōu)化了障礙物布局,證明指標(biāo)在步行設(shè)施空間疏散特征分析中的可應(yīng)用性及有效性.
[Abstract]:In order to provide a reasonable physical space layout for pedestrian evacuation in pedestrian facilities, the evacuation characteristics of pedestrian walking facilities are studied. Firstly, according to whether the inner space of walking facilities can be occupied and moved by pedestrians, it is divided into pedestrian moving space and obstacle space, and the bottleneck width of pedestrian movement is determined by using the shortest distance between the contour lines of the outer edge of obstacle space. Based on the adjacent partition of pedestrian moving space by moving bottleneck, this paper puts forward a method of constructing pedestrian evacuation mobile network, which converts walking facility space into pedestrian evacuation mobile network. Based on the evacuation path selection strategy of the shortest pedestrian distance, the mobile network is transformed into an evacuation tree. Finally, based on the layer and node of the evacuation tree and its membership relationship, from the space area, moving distance, bottleneck width, The evacuation characteristic index of walking facility space is put forward from 4 angles of obstacle layout. Then the method of evaluating the space layout of walking facilities and adjusting the layout of obstacles is obtained. The example analysis shows that the layout of obstacles is adjusted according to the index, and the layout of obstacles is optimized. To prove the applicability and effectiveness of the index in the analysis of space evacuation characteristics of walking facilities.
【作者單位】: 城市交通復(fù)雜系統(tǒng)理論與技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室(北京交通大學(xué));
【基金】:教育部基本科研業(yè)務(wù)費(fèi)專項(xiàng)基金(2015JBM045) 國(guó)家自然科學(xué)基金(51338008,71621001,11172035,51308038) 北京城市交通協(xié)同創(chuàng)新中心基金(T16H100011)
【分類號(hào)】:U491.226
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本文編號(hào):2016368
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