{"id":5130,"date":"2024-11-20T16:24:37","date_gmt":"2024-11-20T08:24:37","guid":{"rendered":"https:\/\/nullthought.net\/?p=5130"},"modified":"2024-11-20T16:24:39","modified_gmt":"2024-11-20T08:24:39","slug":"%e9%81%93%e8%b7%af%e5%88%86%e6%ae%b5%e7%ba%a7%e5%88%ab%e4%ba%a4%e9%80%9a%e6%8b%a5%e5%a0%b5%ef%bc%88%e6%a8%a1%e5%bc%8f%ef%bc%89%e5%87%bd%e6%95%b0%ef%bc%88traffic-congestion-functions%ef%bc%89%e7%9a%84","status":"publish","type":"post","link":"https:\/\/nullthought.net\/?p=5130","title":{"rendered":"\u9053\u8def\u5206\u6bb5\u7ea7\u522b\u4ea4\u901a\u62e5\u5835\uff08\u6a21\u5f0f\uff09\u51fd\u6570\uff08Traffic Congestion Functions\uff09\u7684\u8bc6\u522b"},"content":{"rendered":"\n<p>\u8bba\u6587<strong><a href=\"https:\/\/arxiv.org\/abs\/2405.06080\" target=\"_blank\" rel=\"noreferrer noopener\">Scalable Learning of Segment-Level Traffic Congestion Functions<\/a><\/strong>\u63d0\u51fa\u4e86\u4e00\u79cd\u53ef\u6269\u5c55\u7684\u6570\u636e\u9a71\u52a8\u6846\u67b6\uff0c\u7528\u4e8e\u8bc6\u522b\u9053\u8def\u5206\u6bb5\u7ea7\u522b\u7684\u4ea4\u901a\u62e5\u5835\uff08\u6a21\u5f0f\uff09\u51fd\u6570\u3002\u8fd9\u79cd\u65b9\u6cd5\u80fd\u591f\u5728\u5168\u7403\u8303\u56f4\u5185\u5b9e\u73b0\u4ea4\u901a\u62e5\u5835\u6a21\u578b\u7684\u9ad8\u6548\u8bc6\u522b\u548c\u6cdb\u5316\uff0c\u901a\u8fc7\u6df1\u5ea6\u5b66\u4e60\u6a21\u578b\u6765\u6355\u83b7\u8f66\u6d41\u91cf\u3001\u8f66\u901f\u548c\u5bc6\u5ea6\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n\n\n\n<p>\u8bba\u6587\u4f5c\u8005\u4e3aShushman Choudhury, Abdul Rahman Kreidieh, Iveel Tsogsuren, Neha Arora, Carolina Osorio, Alexandre Bayen\uff0c\u6765\u81eaGoogle Research\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"457\" src=\"https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/image-17-1024x457.png\" alt=\"\" class=\"wp-image-5131\" srcset=\"https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/image-17-1024x457.png 1024w, https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/image-17-300x134.png 300w, https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/image-17-768x343.png 768w, https:\/\/nullthought.net\/wp-content\/uploads\/2024\/11\/image-17.png 1086w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong><a href=\"https:\/\/arxiv.org\/abs\/2405.06080\" target=\"_blank\" rel=\"noreferrer noopener\">Scalable Learning of Segment-Level Traffic Congestion Functions<\/a><\/strong><\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">1. \u7814\u7a76\u80cc\u666f\u4e0e\u76ee\u6807<\/h4>\n\n\n\n<p>\u57ce\u5e02\u4ea4\u901a\u662f\u73b0\u4ee3\u793e\u4f1a\u751f\u6d3b\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5f71\u54cd\u7740\u5c45\u6c11\u7684\u51fa\u884c\u5b89\u5168\u3001\u73af\u5883\u7684\u53ef\u6301\u7eed\u6027\u4ee5\u53ca\u751f\u6d3b\u8d28\u91cf\u3002\u4ea4\u901a\u62e5\u5835\u7684\u7cbe\u786e\u9884\u6d4b\u548c\u5efa\u6a21\uff0c\u5bf9\u4e8e\u6539\u5584\u57ce\u5e02\u4ea4\u901a\u7ba1\u7406\u548c\u4f18\u5316\u9053\u8def\u5229\u7528\u7387\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002\u5c24\u5176\u662f\u968f\u7740\u667a\u80fd\u5bfc\u822a\u7cfb\u7edf\u548c\u57ce\u5e02\u4ea4\u901a\u89c4\u5212\u7684\u53d1\u5c55\uff0c\u7cbe\u51c6\u7684\u62e5\u5835\u6a21\u578b\u80fd\u591f\u5e2e\u52a9\u5b9e\u65f6\u4f18\u5316\u8def\u5f84\u9009\u62e9\uff0c\u51cf\u5c11\u65c5\u884c\u65f6\u95f4\uff0c\u964d\u4f4e\u78b3\u6392\u653e\u91cf\u3002<\/p>\n\n\n\n<p>\u4f20\u7edf\u7684\u4ea4\u901a\u5efa\u6a21\u65b9\u6cd5\u5f80\u5f80\u4f9d\u8d56\u4e8e\u201c\u57fa\u672c\u56fe\u201d\uff08Fundamental Diagram, FD\uff09\uff0c\u5373\u6d41\u91cf\u3001\u8f66\u901f\u548c\u8f66\u5bc6\u5ea6\u4e4b\u95f4\u7684\u51fd\u6570\u5173\u7cfb\u3002\u5927\u591a\u6570\u6b64\u7c7b\u65b9\u6cd5\u57fa\u4e8e\u9884\u5b9a\u4e49\u7684\u51fd\u6570\u5f62\u5f0f\uff0c\u5e76\u5728\u5404\u4e2a\u8def\u6bb5\u5355\u72ec\u62df\u5408\u53c2\u6570\u3002\u8fd9\u79cd\u65b9\u6cd5\u9762\u4e34\u8bb8\u591a\u6311\u6218\uff0c\u5982\u9700\u8981\u5927\u91cf\u7684\u89c2\u6d4b\u6570\u636e\uff0c\u5bf9\u7269\u7406\u7279\u6027\u7684\u4f9d\u8d56\uff0c\u4ee5\u53ca\u96be\u4ee5\u5728\u57ce\u5e02\u751a\u81f3\u5168\u7403\u8303\u56f4\u5185\u6269\u5c55\u3002\u56e0\u6b64\uff0c\u672c\u6587\u7684\u7814\u7a76\u76ee\u6807\u662f\u5f00\u53d1\u4e00\u79cd\u6570\u636e\u9a71\u52a8\u7684\u6846\u67b6\uff0c\u901a\u8fc7\u5728\u5168\u7403\u8303\u56f4\u5185\u7684\u6570\u636e\u96c6\u4e0a\u8bad\u7ec3\u5355\u4e00\u7684\u201c\u62e5\u5835\u51fd\u6570\u201d\uff08Congestion Function, CF\uff09\uff0c\u4ece\u800c\u5b9e\u73b0\u5bf9\u5404\u8def\u6bb5\u4ea4\u901a\u884c\u4e3a\u7684\u7edf\u4e00\u5efa\u6a21\u548c\u9884\u6d4b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. \u63d0\u51fa\u7684\u65b9\u6cd5\u6982\u8ff0<\/h4>\n\n\n\n<p>\u8bba\u6587\u63d0\u51fa\u7684\u65b9\u6cd5\u57fa\u4e8e\u6df1\u5ea6\u5b66\u4e60\u6280\u672f\uff0c\u7279\u522b\u662f\u4f7f\u7528\u5168\u8fde\u63a5\u7684\u524d\u9988\u795e\u7ecf\u7f51\u7edc\u6765\u5b66\u4e60\u9053\u8def\u5206\u6bb5\u7ea7\u522b\u7684\u4ea4\u901a\u62e5\u5835\u51fd\u6570\u3002\u5177\u4f53\u800c\u8a00\uff0c\u8be5\u65b9\u6cd5\u9996\u5148\u901a\u8fc7\u7ed3\u5408\u9759\u6001\u548c\u52a8\u6001\u7684\u9053\u8def\u7279\u5f81\uff0c\u6784\u5efa\u4e00\u4e2a\u7efc\u5408\u7684\u6570\u636e\u96c6\u3002\u7136\u540e\u4f7f\u7528\u8be5\u6570\u636e\u96c6\u6765\u8bad\u7ec3\u4e00\u4e2a\u5355\u4e00\u7684\u795e\u7ecf\u7f51\u7edc\u6a21\u578b\uff0c\u4ee5\u4f30\u8ba1\u6bcf\u4e2a\u9053\u8def\u5206\u6bb5\u7684\u4ea4\u901a\u901f\u5ea6\u3002\u8fd9\u6837\u505a\u7684\u76ee\u7684\u662f\u5b9e\u73b0\u6a21\u578b\u5728\u4e0d\u540c\u8def\u6bb5\u3001\u4e0d\u540c\u57ce\u5e02\u4e4b\u95f4\u7684\u6cdb\u5316\uff0c\u514b\u670d\u6570\u636e\u7a00\u7f3a\u548c\u4e0d\u4e00\u81f4\u5e26\u6765\u7684\u6311\u6218\u3002<\/p>\n\n\n\n<p><strong>\u4e3b\u8981\u6b65\u9aa4\u5305\u62ec<\/strong>\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6570\u636e\u6536\u96c6\u4e0e\u7279\u5f81\u63d0\u53d6<\/strong>\uff1a\u5c06\u4ea4\u901a\u6570\u636e\u6c47\u96c6\u5728\u4e00\u4e2a\u5305\u542b\u6240\u6709\u8def\u6bb5\u7684\u7efc\u5408\u6570\u636e\u96c6\u4e2d\uff0c\u6570\u636e\u6765\u6e90\u5305\u62ec\u9759\u6001\u7279\u5f81\uff08\u5982\u9053\u8def\u51e0\u4f55\u7279\u6027\u3001\u8f66\u9053\u6570\u3001\u9650\u901f\u7b49\uff09\u548c\u52a8\u6001\u7279\u5f81\uff08\u5982\u65f6\u95f4\u7f16\u7801\u3001\u5386\u53f2\u8f66\u6d41\u91cf\u548c\u901f\u5ea6\u7b49\uff09\u3002<\/li>\n\n\n\n<li><strong>\u6a21\u578b\u8bad\u7ec3<\/strong>\uff1a\u4f7f\u7528\u5168\u8fde\u63a5\u7684\u524d\u9988\u795e\u7ecf\u7f51\u7edc\u8fdb\u884c\u8bad\u7ec3\uff0c\u5b66\u4e60\u4ece\u90e8\u5206\u8f66\u6d41\u91cf\u9884\u6d4b\u9053\u8def\u6bb5\u5e73\u5747\u901f\u5ea6\u7684\u51fd\u6570\u5173\u7cfb\u3002\u6a21\u578b\u901a\u8fc7\u4f18\u5316\u635f\u5931\u51fd\u6570\uff08\u9006\u901f\u5ea6\u7684\u5747\u65b9\u8bef\u5dee\uff09\u6765\u6700\u5927\u7a0b\u5ea6\u63d0\u9ad8\u9884\u6d4b\u7cbe\u5ea6\u3002<\/li>\n\n\n\n<li><strong>\u6a21\u578b\u8bc4\u4f30\u4e0e\u9a8c\u8bc1<\/strong>\uff1a\u5728\u591a\u4e2a\u57ce\u5e02\u7684\u9ad8\u901f\u516c\u8def\u548c\u4e3b\u5e72\u9053\u4e0a\u5bf9\u6a21\u578b\u8fdb\u884c\u6d4b\u8bd5\uff0c\u8bc4\u4f30\u5176\u5728\u5df2\u89c2\u6d4b\u548c\u672a\u89c2\u6d4b\u8def\u6bb5\u3001\u4ee5\u53ca\u8de8\u57ce\u5e02\u7684\u6cdb\u5316\u80fd\u529b\u3002<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">3. \u7279\u5f81\u4e0e\u6a21\u578b\u8bbe\u8ba1\u8be6\u89e3<\/h4>\n\n\n\n<p>\u5728\u8be5\u65b9\u6cd5\u4e2d\uff0c\u7279\u5f81\u7684\u9009\u62e9\u548c\u795e\u7ecf\u7f51\u7edc\u7684\u8bbe\u8ba1\u662f\u6838\u5fc3\u3002\u8bba\u6587\u8be6\u7ec6\u63cf\u8ff0\u4e86\u6a21\u578b\u4f7f\u7528\u7684\u7279\u5f81\u7c7b\u578b\u3001\u6a21\u578b\u7ed3\u6784\u4ee5\u53ca\u5982\u4f55\u5229\u7528\u8fd9\u4e9b\u7279\u5f81\u8fdb\u884c\u62e5\u5835\u51fd\u6570\u7684\u5b66\u4e60\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">3.1 \u9759\u6001\u7279\u5f81<\/h5>\n\n\n\n<p>\u9759\u6001\u7279\u5f81\u662f\u90a3\u4e9b\u5728\u77ed\u671f\u5185\u4e0d\u968f\u65f6\u95f4\u53d8\u5316\u7684\u9053\u8def\u5c5e\u6027\uff0c\u8fd9\u4e9b\u7279\u5f81\u4e3b\u8981\u7528\u4e8e\u5e2e\u52a9\u6a21\u578b\u5728\u4e0d\u540c\u8def\u6bb5\u4e4b\u95f4\u8fdb\u884c\u6cdb\u5316\uff0c\u5177\u4f53\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8def\u6bb5\u957f\u5ea6\uff08Length\uff09<\/strong>\uff1a\u8868\u793a\u8def\u6bb5\u7684\u51e0\u4f55\u957f\u5ea6\uff0c\u5355\u4f4d\u4e3a\u7c73\u3002<\/li>\n\n\n\n<li><strong>\u8f66\u9053\u6570\uff08Lanes\uff09<\/strong>\uff1a\u8be5\u8def\u6bb5\u4e2d\u6cbf\u884c\u9a76\u65b9\u5411\u7684\u8f66\u9053\u6570\u3002<\/li>\n\n\n\n<li><strong>\u8f66\u9053\u5bbd\u5ea6\uff08Width\uff09<\/strong>\uff1a\u6240\u6709\u8f66\u9053\u7684\u603b\u5bbd\u5ea6\uff0c\u5355\u4f4d\u4e3a\u7c73\u3002<\/li>\n\n\n\n<li><strong>\u9650\u901f\uff08Speed Limit\uff09<\/strong>\uff1a\u8be5\u8def\u6bb5\u7684\u9650\u901f\uff0c\u5355\u4f4d\u4e3a\u7c73\/\u79d2\u3002<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">3.2 \u52a8\u6001\u7279\u5f81<\/h5>\n\n\n\n<p>\u52a8\u6001\u7279\u5f81\u662f\u90a3\u4e9b\u968f\u65f6\u95f4\u53d8\u5316\u7684\u9053\u8def\u548c\u4ea4\u901a\u91cf\u4fe1\u606f\uff0c\u5e2e\u52a9\u6a21\u578b\u5728\u65f6\u95f4\u5e8f\u5217\u4e2d\u66f4\u597d\u5730\u5b66\u4e60\u4ea4\u901a\u6d41\u901f\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u65f6\u95f4\u7f16\u7801\uff08Temporal Encoding\uff09<\/strong>\uff1a\u5bf9\u65f6\u95f4\uff08\u5982\u4e00\u5929\u4e2d\u7684\u67d0\u4e2a\u5c0f\u65f6\u548c\u4e00\u5468\u4e2d\u7684\u67d0\u5929\uff09\u8fdb\u884c\u6b63\u5f26-\u4f59\u5f26\u7f16\u7801\uff0c\u4ee5\u6355\u83b7\u4fe1\u53f7\u7684\u5468\u671f\u6027\u3002<\/li>\n\n\n\n<li><strong>\u6807\u51c6\u5316\u6d41\u91cf\uff08Normalized Flow\uff09<\/strong>\uff1a\u7528\u8f66\u6d41\u91cf\u9664\u4ee5\u8def\u6bb5\u957f\u5ea6\u548c\u8f66\u9053\u6570\uff0c\u4ee5\u6355\u83b7\u5355\u4f4d\u957f\u5ea6\u548c\u5355\u4f4d\u8f66\u9053\u7684\u6d41\u91cf\u3002<\/li>\n\n\n\n<li><strong>\u524d\u671f\u6d4b\u91cf\uff08Previous Measurements\uff09<\/strong>\uff1a\u5305\u62ec\u524d\u4e00\u4e2a\u65f6\u95f4\u95f4\u9694\u7684\u8f66\u6d41\u91cf\u548c\u901f\u5ea6\uff0c\u8fd9\u4e9b\u5386\u53f2\u4fe1\u606f\u53ef\u4ee5\u589e\u5f3a\u6a21\u578b\u5bf9\u5f53\u524d\u65f6\u6bb5\u4ea4\u901a\u72b6\u6001\u7684\u9884\u6d4b\u80fd\u529b\u3002<\/li>\n<\/ul>\n\n\n\n<h5 class=\"wp-block-heading\">3.3 \u8def\u6bb5\u4f18\u5148\u7ea7\u805a\u7c7b<\/h5>\n\n\n\n<p>\u7531\u4e8e\u4e0d\u540c\u7c7b\u522b\u7684\u9053\u8def\uff08\u5982\u9ad8\u901f\u516c\u8def\u548c\u4e3b\u5e72\u9053\uff09\u5177\u6709\u4e0d\u540c\u7684\u4ea4\u901a\u884c\u4e3a\uff0c\u56e0\u6b64\u6a21\u578b\u5728\u8bad\u7ec3\u65f6\u9700\u8981\u5c06\u8def\u6bb5\u6309\u7c7b\u578b\u805a\u7c7b\u3002\u5177\u4f53\u5730\uff0c\u8bba\u6587\u5c06\u8def\u6bb5\u5206\u4e3a\u4e24\u7c7b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9ad8\u901f\u516c\u8def\uff08Highway\uff09<\/strong>\uff1a\u4e3b\u8981\u7528\u4e8e\u8fde\u63a5\u533a\u57df\u7684\u9ad8\u901f\u8def\u6bb5\uff0c\u53ef\u80fd\u5b58\u5728\u90e8\u5206\u6216\u5b8c\u5168\u7684\u8bbf\u95ee\u63a7\u5236\u3002<\/li>\n\n\n\n<li><strong>\u4e3b\u5e72\u9053\uff08Arterial\uff09<\/strong>\uff1a\u7528\u4e8e\u57ce\u9547\u6216\u90bb\u8fd1\u793e\u533a\u95f4\u7684\u8fde\u63a5\uff0c\u6216\u8005\u4ece\u5c0f\u578b\u652f\u8def\u901a\u5f80\u5927\u578b\u9053\u8def\u3002<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">4. \u5b9e\u9a8c\u4e0e\u7ed3\u679c\u5206\u6790<\/h4>\n\n\n\n<p>\u8bba\u6587\u5728\u591a\u4e2a\u5927\u90fd\u5e02\u533a\u57df\u8fdb\u884c\u5b9e\u9a8c\uff0c\u4ee5\u9a8c\u8bc1\u6240\u63d0\u51fa\u65b9\u6cd5\u7684\u6709\u6548\u6027\u4e0e\u6cdb\u5316\u80fd\u529b\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">4.1 \u6570\u636e\u96c6<\/h5>\n\n\n\n<p>\u7814\u7a76\u7684\u6570\u636e\u96c6\u6db5\u76d6\u4e86\u5168\u7403\u591a\u4e2a\u4e3b\u8981\u57ce\u5e02\uff08\u5982\u4e9a\u7279\u5170\u5927\u3001\u6d1b\u6749\u77f6\u3001\u6155\u5c3c\u9ed1\u3001\u4f26\u6566\u3001\u5927\u962a\u3001\u8fea\u62dc\uff09\u7684\u8def\u6bb5\u4fe1\u606f\uff0c\u7edf\u8ba1\u4fe1\u606f\u8868\u660e\u6bcf\u4e2a\u57ce\u5e02\u7684\u8def\u6bb5\u6570\u5747\u8d85\u8fc7\u6570\u4e07\uff0c\u5e76\u4e14\u6db5\u76d6\u4e0d\u540c\u7684\u4ea4\u901a\u6a21\u5f0f\u548c\u9053\u8def\u7ed3\u6784\u3002\u8be5\u6570\u636e\u96c6\u6765\u6e90\u4e8eGoogle Maps\u7684\u9053\u8def\u7f51\u7edc\u6570\u636e\u548c\u9a7e\u9a76\u8d8b\u52bf\uff0c\u6d4b\u91cf\u9891\u7387\u4e3a\u6bcf\u5c0f\u65f6\u4e00\u6b21\uff0c\u6db5\u76d6\u4e86\u6bcf\u5468\u6240\u6709\u5929\uff0c\u4ece\u65e9\u4e0a7\u70b9\u5230\u665a\u4e0a10\u70b9\u4e4b\u95f4\u7684\u65f6\u95f4\u6bb5\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">4.2 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Roads\u6a21\u578b\uff0cBPR\uff09\u8fdb\u884c\u4e86\u5bf9\u6bd4\u3002\u7ed3\u679c\u663e\u793a\uff0c\u5728\u9ad8\u901f\u516c\u8def\u4e0a\uff0c\u6570\u636e\u9a71\u52a8\u6a21\u578b\u7684\u9884\u6d4b\u8bef\u5dee\u4e0e\u57fa\u4e8e\u6bcf\u6bb5\u8def\u6bb5\u5355\u72ec\u62df\u5408\u7684\u65b9\u6cd5\u76f8\u5f53\uff0c\u751a\u81f3\u5728\u4e00\u4e9b\u60c5\u51b5\u4e0b\u8868\u73b0\u66f4\u597d\u3002\u7136\u800c\uff0c\u5728\u4e3b\u5e72\u9053\u4e0a\uff0c\u6a21\u578b\u7684\u9884\u6d4b\u8bef\u5dee\u76f8\u5bf9\u8f83\u5927\uff0c\u8fd9\u53ef\u80fd\u662f\u56e0\u4e3a\u4e3b\u5e72\u9053\u7684\u4ea4\u901a\u52a8\u6001\u66f4\u52a0\u590d\u6742\u3002<\/p>\n\n\n\n<h6 class=\"wp-block-heading\">4.3.2 \u6cdb\u5316\u80fd\u529b\u8bc4\u4f30<\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u672a\u89c2\u6d4b\u8def\u6bb5\u7684\u6cdb\u5316\u80fd\u529b<\/strong>\uff1a\u6a21\u578b\u572880%\u7684\u8def\u6bb5\u4e0a\u8bad\u7ec3\uff0c\u5728\u5269\u4f5920%\u672a\u89c1\u8fc7\u7684\u6570\u636e\u4e0a\u8fdb\u884c\u6d4b\u8bd5\uff0c\u4f7f\u7528\u4e865\u6298\u4ea4\u53c9\u9a8c\u8bc1\u3002\u7ed3\u679c\u663e\u793a\uff0c\u6a21\u578b\u5728\u65b0\u8def\u6bb5\u4e0a\u7684\u8868\u73b0\u4e0e\u5728\u539f\u59cb\u8bad\u7ec3\u8def\u6bb5\u4e0a\u7684\u8868\u73b0\u76f8\u4f3c\uff0c\u8bf4\u660e\u5176\u5177\u6709\u826f\u597d\u7684\u6cdb\u5316\u80fd\u529b\u3002<\/li>\n\n\n\n<li><strong>\u8de8\u57ce\u5e02\u7684\u8fc1\u79fb\u5b66\u4e60\u80fd\u529b<\/strong>\uff1a\u6a21\u578b\u8fd8\u5728\u8de8\u57ce\u5e02\u7684\u201c\u96f6\u6837\u672c\u8fc1\u79fb\u5b66\u4e60\u201d\u4e2d\u8fdb\u884c\u4e86\u6d4b\u8bd5\uff0c\u5373\u5728\u4e00\u4e2a\u57ce\u5e02\u8bad\u7ec3\u7684\u6a21\u578b\u76f4\u63a5\u5e94\u7528\u4e8e\u53e6\u4e00\u4e2a\u57ce\u5e02\u3002\u7ed3\u679c\u663e\u793a\uff0c\u6b27\u7f8e\u57ce\u5e02\u4e4b\u95f4\uff08\u5982\u6d1b\u6749\u77f6\u5230\u6155\u5c3c\u9ed1\uff09\u7684\u8fc1\u79fb\u6548\u679c\u8f83\u597d\uff0c\u800c\u4ece\u4e9a\u6d32\u57ce\u5e02\uff08\u5982\u5927\u962a\uff09\u8fc1\u79fb\u5230\u6b27\u7f8e\u57ce\u5e02\u7684\u6548\u679c\u76f8\u5bf9\u8f83\u5dee\uff0c\u8fd9\u53ef\u80fd\u4e0e\u4e0d\u540c\u57ce\u5e02\u4e4b\u95f4\u7684\u4ea4\u901a\u6a21\u5f0f\u5dee\u5f02\u6709\u5173\u3002<\/li>\n<\/ul>\n\n\n\n<h6 class=\"wp-block-heading\">4.3.3 \u62d3\u5c55\u5206\u6790\uff1a\u5173\u952e\u5bc6\u5ea6\u9884\u6d4b<\/h6>\n\n\n\n<p>\u4e3a\u4e86\u9a8c\u8bc1\u6a21\u578b\u7684\u4e0b\u6e38\u6548\u7528\uff0c\u8bba\u6587\u8fdb\u4e00\u6b65\u7814\u7a76\u4e86\u5176\u662f\u5426\u80fd\u591f\u9884\u6d4b\u4e0e\u9053\u8def\u6bb5\u4ea4\u901a\u6d41\u91cf\u76f8\u5173\u7684\u91cd\u8981\u53c2\u6570\uff0c\u7279\u522b\u662f\u201c\u5173\u952e\u5bc6\u5ea6\u201d\uff08critical density\uff09\uff0c\u5373\u9053\u8def\u6bb5\u4ece\u81ea\u7531\u6d41\u5230\u62e5\u5835\u72b6\u6001\u7684\u8f6c\u6362\u70b9\u3002\u901a\u8fc7\u6a21\u578b\u9884\u6d4b\u7684\u901f\u5ea6\u548c\u6d41\u91cf\u5173\u7cfb\uff0c\u6a21\u578b\u6210\u529f\u5730\u9884\u6d4b\u4e86\u9053\u8def\u6bb5\u7684\u5173\u952e\u5bc6\u5ea6\uff0c\u5e76\u4e0e\u57fa\u4e8eBPR\u6a21\u578b\u548c\u771f\u5b9e\u6570\u636e\u8ba1\u7b97\u7684\u5173\u952e\u5bc6\u5ea6\u8fdb\u884c\u4e86\u5bf9\u6bd4\u3002\u7ed3\u679c\u8868\u660e\uff0c\u6570\u636e\u9a71\u52a8\u6a21\u578b\u5728\u6ca1\u6709\u7279\u5b9a\u53c2\u6570\u62df\u5408\u7684\u60c5\u51b5\u4e0b\uff0c\u4ecd\u80fd\u51c6\u786e\u9884\u6d4b\u5173\u952e\u5bc6\u5ea6\uff0c\u8bc1\u660e\u4e86\u6a21\u578b\u5728\u63d0\u53d6\u9053\u8def\u6bb5\u7279\u6027\u65b9\u9762\u7684\u6709\u6548\u6027\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">5. 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