好多beecroft 的房子都离那个排废气的好近．之前看过wahroonga的房子也是．
并且很多非常好的学校都在附近．beecroft primary 离那里目测两公里．
到底多远才算是安全呢．纠结．．
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2公里还不够吗？没问题的
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画个圈圈，两公里内的圆周很多房子都不能去看了．现在好多卖出来的只离开几百米．
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500m
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太纠结了吧. 别人住大路边的, 高压线边的, 不也没事么?
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lane covel隧道那会儿吵得那么热闹，结果压根没影响价格
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其实修好以后，地面交通改为地下，堵车减少，废气排放总量是减少的趋势。
排废气的vent也是经过过滤后才把废气排出来，比现在大型卡车直接排放要好。
那一块儿空气质量应该能提高。
——————————————————————————————
Update：
经查证，澳洲隧道排气均为不经过过滤直接排放。
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同意， 因此lz不要太介意排气管。
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买房首要考虑timing, location, feeling...
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wahroonga是上面那个排气口
beecroft离那个很远吧？
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有道理
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好像排气口在west pennant hills吧？怎么和beecroft扯上了 而且，个人认为200米开外的房子就不受影响了吧？
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在自家后院也没影响
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已经决定，不采用过滤，直接排放，请研究清楚相关文件。
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一查果然是我想当然了。
澳洲没有带filtre的tunnel vent。
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在 pennant hills golf club 那里．west pennant hills 和beecroft 都有影响到吧． 看哪条街．
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楼主多虑了，其实这事么，风向更重要
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M5就有，但是用起来很花钱，政府不愿意掏这笔钱，就拿国外同类项目来扯蛋。M5排气口周围，1-2公里有青烟，可以去查相关文件，所以安全距离必须为2公里以上。不然为什么政府在Waroonga排气口设置的空气检测设备，距离排气口2公里，为什么不是1公里？大家自己想，不用多说的。
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这样说两公里画圈． murray farm 和beecroft 小学都圈进去了呢
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兄台能给一个出处吗？这样太吓人了。
不过滤，直接排出的话，排气口附近就真没法住人了。
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啥时开通呀
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2019...
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其他地方可以买，为什么一定买那？
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http://m.smh.com.au/nsw/doctors-fear-health-impact-of-northconnex-tunnel-pollution-20140829-10a6o0?skin=smart-phone
上面说40-50米以外还好，LZ可以搜索north connex pollution, 找多一点信息，正反两面信息都要看
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http://www.northshoremums.com.au/what-pollution-stacks-near-upper-north-shore-schools/
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http://northconnex.com.au/misconceptions.php
Clarification
There is no tunnel ventilation outlet in Australia that has filtration.
Filtration would not deliver any measurable benefits to the surrounding community. As shown in the air quality assessment for NorthConnex, emissions from the ventilation outlets would cause a negligible change in local air quality, and levels of particulate matter are within all relevant guidelines and standards. An analysis of the need for filtration is included in Section 7.3.1 of the EIS.
In addition, the NSW Government is continuing to target emissions at the source – the vehicles themselves – through a range of education, compliance and regulation measures including better fuels, improved technology and stringent emission standards. This strategy has proven very effective and benefits the community as a whole as vehicles and trucks travel throughout the state.
Statement: 'The tunnel ventilation design hopes to reduce the hazards in the tunnel from the daily pollution from 9,000 cars and 5,000 trucks. Doubts exist as to whether it can achieve this. More doubt surrounds the effectiveness of dispersing these toxins and carcinogens from the stack.'
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http://northconnex.com.au/docs/F ... ilation_Systems.pdf
The NorthConnex ventilation system will be designed
with a longitudinal ventilation system with air drawn in the
portals by moving traffic.
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We can now build a nine kilometre road tunnel with
an outlet at each end because cars and trucks are
significantly cleaner than when either the Lane Cove or
the M5 East tunnels were built.
http://northconnex.com.au/docs/R ... hern.pdf?v=06062014
How rediculous this is! the 9 kilometres tunnel will for trucks with diesel fuel!
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http://www.nhmrc.gov.au/_files_n ... ttachments/eh42.pdf
Page 70, M5 east outlet
These features are illustrated for the M5 East tunnel (Sydney) in Figure 5.1. On the left are
modelled contours of NOx concentrations and on the right NOx exposure zones are allocated as a
result of the modelling. There are three focal points. Highest concentrations are apparent on the
left and right, relating to the tunnel portals. In the centre a ‘saddle’ point is apparent with a small
area of low concentration surrounded by lobes of higher concentration. This is the exhaust stack.
The shape of the ‘high’ exposure zone describes the interaction of prevailing meteorology with
the emitted NOx plumes from these three sources.
Page 125 conclusion: NOT SURE DUE TO LACK OF DATA to your health
Particle number concentrations or other measurements which more clearly represent ultrafine
particles, will show more clearly the relative contributions of emissions from traffic in a tunnel
and on local surface roads. This is more likely to be the case in peak events. The modelled
high percentile NOx concentrations in the vicinity of the M5 East tunnel (Hibberd 2006) suggest
to us that number concentrations of particles could be enhanced by some thousands per cm3
in high emission or poor dispersion conditions, whereas ambient concentrations tend to be in
the low tens of thousands per cm3, representing a not insignificant enhancement. If such values
are realistic (we have found no data to indicate one way or the other), the expected effects of
such an event on health in the community cannot yet be estimated due to our current lack of
epidemiological data on ultrafine particles, and it may affect too small a population for such
effects to be observable. We must assume that the one hour NO2 standard affords some protection
against the effects of ultrafine particles (and traffic-derived air toxics) on the community, but we
recommend that further research is sorely needed in this area, including modelling and monitoring
of particle number concentrations near road tunnels.
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2公里足够了
其实太干净也不行 澳傻那么多乱七八糟的过敏就是因为太干净了
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