减速路障的放置[讨论]

fighting

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 28pt; mso-char-indent-count: 2.0; mso-char-indent-size: 14.0pt; mso-line-height-alt: 0pt;"><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">某单位地处主干道边上，车流量较大，车速平均每小时</span><span lang="EN-US" style="FONT-SIZE: 14pt;"><font face="Times New Roman">60</font></span><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">公里，对人员进出造成了一定的威胁。现在有关部门打算在该路段放置减速路障，达到使来往车辆减速的目的。</span><span lang="EN-US" style="FONT-SIZE: 14pt;"><font face="Times New Roman">60km/h=100/6 m/s=16.7m/s<p></p></font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 28pt; mso-char-indent-count: 2.0; mso-char-indent-size: 14.0pt; mso-line-height-alt: 0pt;"><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">（</span><span lang="EN-US" style="FONT-SIZE: 14pt;"><font face="Times New Roman">1</font></span><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">）建立减速路障的<font color="#000000"><span style="COLOR: red;">减速</span>数学模型；</font></span><span lang="EN-US" style="FONT-SIZE: 14pt;"><p></p></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 28pt; mso-char-indent-count: 2.0; mso-char-indent-size: 14.0pt; mso-line-height-alt: 0pt;"><font color="#000000"><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">（</span><span lang="EN-US" style="FONT-SIZE: 14pt;"><font face="Times New Roman">2</font></span><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">）利用所建的数学模型<span style="COLOR: red;">分析在等距设置三道减速路障情况下的减速效果；</span></span><span lang="EN-US" style="FONT-SIZE: 14pt;"><p></p></span></font></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 28pt; mso-char-indent-count: 2.0; mso-char-indent-size: 14.0pt; mso-line-height-alt: 0pt;"><font color="#000000"><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">（</span><span lang="EN-US" style="FONT-SIZE: 14pt;"><font face="Times New Roman">3</font></span><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">）利用所建的数学模型<span style="COLOR: red;">分析减速效果最优的三道减速路障的设置方案；</span></span><span lang="EN-US" style="FONT-SIZE: 14pt; COLOR: red;"><p></p></span></font></p><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">（</span><span lang="EN-US" style="FONT-SIZE: 14pt; FONT-FAMILY: &quot;Times New Roman&quot;; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">4</span><span style="FONT-SIZE: 14pt; FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;; mso-font-kerning: 1.0pt; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">）给交管部门写一封建议信。</span>

徐耀辉

<p>这是那个学校出的题</p>