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- 1 回复 Dust
- 地基很重要。由于铺路的地段的土质不一样，有些松有些密造成完工以后的1-2年内出现路面的高低不平是不奇怪的。关键是路铺成后的总厚度（包括路面底下的砂石）和铺完基础层（地基）后放置多长时间后才铺最后的Top Layer。你有没有注意到有些路铺了基层以后过了几个月才铺最后的面层？但有些旧路翻新就不用了，因为它已经受压多年变形稳定了。
- 1 回复 千里之外
- Dust: 地基很重要。由于铺路的地段的土质不一样，有些松有些密造成完工以后的1-2年内出现路面的高低不平是不奇怪的。关键是路铺成后的总厚度（包括路面底下的砂石）和好专业，问我可是白问，我也想到是路基根本没有认真做好的原因。
- 1 回复 jjsummer95
- 那只是您家的小路， 到Detroit来看看。。一年到晚都在修路
- 1 回复 jjsummer95
- SirCat: 行人流量大，绝对是个原因。到Detroit来看看。。一年到晚都在修路
南京不知道
北京的人行道（包括一些小马路）
经常被挖了填，填了挖
每家店铺，公司都可以雇人开工
政府缺乏有效规划管理
所以路面就
- 1 回复 snortbsd
- 练精化气AAA: 多说一句哈， 你家那个路，如果每天有 20万人次的流量， 一年不作维护，估计垮得更厉害well, it is possible to make it higher quality. but it would require much thicker foundation, which means much higher investment for those roads.
维护就要出钱，这才是地方政府的具体问题。
the quality of highways in the states is much lower than the that of europe, in general for two reasons: 1) there is no way to compare between highways of europe and highways of the states in terms of miles per capita (i could drive through three or even four countries in one day in europe); the investment for such long miles of highways would be incredibly huge if using european standards. 2) there is no comparison in terms of usage for those highways. at least 50% of europeans have no cars (a lot of them don't even have licenses) and largely depend on the public transportation systems.
that is why american roads always seem to be crappier, especially those segments nearby big cities.
of course, "国内人 do something for something" is also factual. the culture of quality isn't in our bone yet...
- 1 回复 jjsummer95
- SirCat: 感觉底特律都快成Down town - kind of; sub - no.
ghost town了吧？
居民大量流失
白岩松去采访过一回
唉
。
- 1 回复 千里之外
- snortbsd: well, it is possible to make it higher quality. but it would require much thicker foundation, which means much higher investment for those roads.一条人行道引出这么多道理，学习了，谢谢
th
