< ><FONT face=宋体><FONT size=3>????? dispersion在这儿理解成堵塞的缓解,还是理解成概率中的均值?在词典中dispersion也有后者的意思!traveling characteristics在这儿如何理解?请专家再给出几个例子,最大流量等算不算characteristics?<p></p></FONT></FONT></P>
< ><FONT size=3><FONT face="Times New Roman">//////// dispersion</FONT>在这儿理解成堵塞的缓解。至于特征是应该由你们考虑的问题。<p></p></FONT></P>
< ><p><FONT face="Times New Roman" size=3> </FONT></p></P>
<P ><FONT size=3><FONT face="Times New Roman">////////// variance of link travel time is proportional to the reciprocal of </FONT>(<FONT face="Times New Roman">link length)^(2/3) as well as proportional to the product of the number of links connecting to the two nodes at both ends of the link.</FONT>的意思是行车时间这个随机变量的方差与路段的长度的<FONT face="Times New Roman">2/3</FONT>次方成反比,与路段两端(节点)所连接的高速公路路段数的乘积成正比。<p></p></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">????????</FONT>在<FONT face="Times New Roman">A</FONT>题中,第二问中图上标出的<FONT face="Times New Roman">Message sign(active)</FONT>和<FONT face="Times New Roman">Message sign(blank)</FONT>是什么意思??是不是探测器工作与不工作?<p></p></FONT></P>
<P ><FONT size=3><FONT face="Times New Roman">/////////////</FONT>是的</FONT><p></p></P>