lalan

A Ruby-throat dead 紅點頦死了

The noise barrier is a new trap 隔音屏障是新的陷阱

cchristina

Hello, may I know the location?

Christina

fforrest

Hi Alan,

Can you tell us the location of the noise barrier and date of the bird collision please. :cry:
Forrest

lalan

11月4日
元朗十八鄉路與公庵路交界以西

我們可以做甚麼呢？

lalan

1/12/2006
土瓜灣馬頭圍道帝庭豪園
也是隔音屏障
死者︰珠頸斑鳩

wcaptain

If you feel comfortable, pls send a fax reporting the no and spp of dead birds, date, and location to Highways Department and cc it to EPD.

They will do something to stop this happening again.


If it is not too convenient, pls send these information to Kadoorie Farm and Botanic Garden (Attn: Captain Wong) at 2483 1877 (fax) or captainw@kfbg. or g

These information will be sent to the relevant depts for drawing their attention.

Your kind help will certainly reduce possible bird collision in the future.

Captain Wong
Kadoorie Farm and  Botanic Garden

lalan

又係十八鄉路的體育路新段
5/12/2006(今日)發現黃眉柳鶯屍體
我經過的位置只是整段隔音屏障的一部份，其他位置可能有更多...... :evil:

lalan

:evil:
又係十八鄉路的體育路新段
11/12/2006灰背鶇
真係日日新鮮

附圖是元朗新建的十八鄉路(部份)
紅線是隔音屏障的位置(部份)
自十一月起已經發現至少三隻雀鳥誤撞屏障而死

Point1 是紅點頦
Point2 是黃眉柳鶯
Point3 是灰背鶇

整段十八鄉路貫穿了不少鄉郊地方，屏障兩邊都是空曠的鄉村，我途經的地方只是整段的一小段，而且只是在上下班的時間，究竟整段路每天會害死多少雀鳥呢？還有全香港有多少這樣的隔音屏障呢？

lalan

Point 4 灰背鶇(雄)19/12/2006


Point 5 灰背鶇(雌)19/12/2006

lmichael

I cannot read the Chinese but this looks like a classic case of how NOT to design a noise barrier - clear glass and extensive green area on one side so that disturbed or frightened birds instinctively try to dive in to cover.

This should definately be reported to Government so that remedial measures can be taken - ideally making it opaque or failing this applying conspicous shapes to the glass to make it more visible.

Mike Leven

lbarry

Sorry to note so many fatal cases regarding birds hitting on the noise barrier. I think the design of noise barrier should be changed. A raptor figure with an illuminating material should be adhered on the surface of noise barrier so that birds will not fly too close to it. The designer of HyD should take note in order to prevent from recurrence. However, I always feel that the engineers working in the government are very robust. They are not so considerate. Development is at their first priority while sustainability of culture, building, environment, social lives is put aside. They can destroy Star Pier, Queen Pier and can sacrifice natural animals and plants.
What a cruel government !

lalan

2more birds had been found
2006年12月31日        white-rumped minia        白腰文鳥
2006年12月31日        japanese white-eye        暗綠繡眼鳥  x2

深藍-Owen

早陣子新聞見路政處宣傳呢類隔音屏效果. 而且決定未來會加設更多這類透明隔音屏. 同時指出這類隔音屏做成鳥類死亡的事件只是很小數.

Webcreeper

Government Press Release on 24/12/06

Green noise barriers to go on trial

Plants can soften the appearance of noise barriers and improve the streetscape, Highways Department Chief Engineer Chow Chun-wah says. Special panels will be put on trial on two road sections in Kwun Tong and Tsuen Wan where noise-barrier retrofitting will begin in 2007.

Noise barriers and enclosures are often installed to protect residents from traffic noise. While they mitigate noise, they also have a visual impact. In this regard, a study was launched early this year to explore the greening and aesthetic design of noise barriers.


To alert our feathered friends, falcon stickers (right) have been put on the transparent noise barrier along Kam Tin Bypass to make the panel visible to birds.

... ...

On other greening measures, such as concrete panels with climbers, the engineering expert said the public prefer transparent panels since concrete ones may block views and light.

Apart from the acoustic, aesthetic and greening aspects, engineers must also take into account the safety of our feathered friends, especially when designing noise barriers in areas with high bird density or in rural areas.

... ...


Barriers made visible

"With the advice of the Agriculture, Fisheries & Conservation Department, we have put falcon stickers on a section of transparent noise barriers along Kam Tin Bypass since June, to make the barriers visible to birds, following reports that bird carcasses were found," Mr Chow said.

Local and overseas experiences have shown that falcon stickers can cut the number of birds who fly blindly into the transparent barriers. The AFCD's initial assessment found the trial on Kam Tin Bypass worked well, with only one dead bird found in the two-month observation period.

In the same period, 20 bird carcasses were found along the section where no falcon stickers were posted.

To confirm the stickers' effectiveness, falcon stickers will be put on another section of transparent noise barrier along Kam Tin Bypass in early 2007.

Mr Chow noted so far there are no dead-bird reports for other roads fitted with transparent noise barriers.

Webcreeper

24/12/06 政府新聞稿

兩路段引入綠化隔音牆

路政署的研究發現，以透明物料建造隔音屏障，可減低侷促的感覺，但若情況許可，可考慮加添綠化元素，如採用綠化隔音牆、附以攀爬植物的混凝土隔音屏障、土堤，以及綠化隔音罩頂部。

將軍澳道近翠屏南邨和青荃橋荃灣段引道，將試行引入綠化隔音牆，預計2009 - 10年完成。

為提高雀鳥的警覺，錦田繞道的透明隔音屏障已貼上猛禽的圖案。

錦田繞道的1段透明隔音屏障則已貼上猛禽圖案（右圖），提高雀鳥的警覺。

... 加上區議會和居民的意見大多傾向採用透明的隔音屏障，故較多採用透明的隔音屏障。

... ...


隔音屏障的設計，除了能發揮屏障的功能，以及具美化和綠化的效果，若裝設的地點位處鄉郊，或是雀鳥經常途經或聚集，設計便也要顧及保護生態的元素。

     周進華表示，在收到意見指出，在錦田繞道近高埔村的透明隔音屏障附近發現雀鳥屍體後，便根據漁農自然護理署的建議，6月在1段透明隔音屏障貼上獵鷹圖案，以測試這能否減低雀鳥撞向透明隔音屏障的成效。

猛禽圖案試驗理想

     根據本地和海外的經驗，猛禽圖案能令其他雀鳥更為警覺，並察覺到透明隔音屏障的存在，以減低雀鳥撞向透明隔音屏障的機會。

     漁護署的初步評估認為，試驗的效果理想。在兩個月的試驗觀察期內，貼上獵鷹圖案的屏障下，只錄得1隻死雀，較同一地段沒貼有獵鷹圖案的屏障下錄得的20隻死雀數目明顯為低。

     路政署明年年初在上址另一段透明隔音屏障貼上獵鷹圖案，以便漁護署進一步研究這些圖案的成效。

    周進華指出，除錦田繞道外，暫時未收到報告指其他路段的透明隔音屏障下發現死鳥。

     然而，若有迹象顯示透明隔音屏障對雀鳥構成危險，漁護署和路政署將研究是否需要貼上獵鷹圖案及其可行性。

     路政署已有作業指引，要求工程師在設計階段，考慮預防雀鳥撞向透明隔音屏障的設計。有關作業指引的詳情，可瀏覽這裡。

Webcreeper

Link given in the Chinese version of the press release.

PRACTICE NOTES NO. BSTR/PN/003 - Revision B
Noise Barriers with Transparent Panels
Bridges and Structures Division October 2006


3. Design Considerations

Apart from the noise mitigation requirement for the noise barrier, the designer shall also consider, inter alia, :-
(i) Cost effectiveness
(ii) Safety and fire resistance
(iii) Aesthetics
... ...
(ix) Bird collision
... ...


3.9 Bird collision

There are reported cases where birds collide onto the transparent noise barrier panels causing bird mortality. As the panels are either transparent which appears invisible to birds or reflective that mirrors the facing landscape, birds are unable to recognize them as physical barriers. Having considered the bird collision problem, the Director of Agriculture, Fisheries and Conservation (DAFC) recommended that transparent materials should be avoided as far as possible in the design of noise barrier in areas with high bird density or for roads that cut across rural areas.

To address the bird collision problem, designers should consider bird collision measures during the design stage. It has been a standard practice in Hong Kong to provide transparent noise barrier panels with either tinted materials, embedded opaque stripes or superimposed patterns of thin opaque stripes. However, recent experience suggested that application of tinted materials alone may not be adequate in preventing bird collision and further mitigation measures are needed. In this regard, our department and DAFC are investigating several alternative measures to address the problem. Designers may take note of the investigation and seek DAFC’s advice where necessary.

lalan

[quote:f47c922c36="Webcreeper"]24/12/06 政府新聞稿

周進華指出，除錦田繞道外，暫時未收到報告指其他路段的透明隔音屏障下發現死鳥。
[/quote]

what the hell????????

lalan

2007年1月8日 japanese white-eye 暗綠繡眼鳥 :x

lalan

14-01-2007  Grey-backed Thrush(F) 灰背鶇(雌)

lalan

26-01-2007
japanese white-eye 暗綠繡眼鳥 X 2
Seem the gov didnt want to do anything.

lalan

27-01-2007Grey-backed Thrush(F) 灰背鶇(雌)

lalan

29-01-2007
japanese white-eye 暗綠繡眼鳥 X 2

it is any related to the low temp.?

lalan

2007年2月6日 white-rumped minia 白腰文鳥

lalan

2007-4-18
樹麻雀

lalan

13-5-2007白頭鵯
14-5-2007黑臉躁(眉鳥)

lalan

2007-7-4
樹麻雀

lalan

2007-9-11
不知道是甚麼雀，是亞成的

cgeoff

This is a 1st winter male Siberian Blue Robin. There are usually only 2-3 records of this species each year.

Where was it found?

Geoff

lalan

on the same road,next to the hangheung workshop.
should i be happy with this new record ??:roll:

cgeoff

It's an interesting record. Pls make sure you submit it to the Society at the end of the year. The Excel file for record submission is elsewhere on this website.

Thanks,

Geoff

laustin

T T T_T T^T T'^'T :cry:  :cry:

lalan

30-10-2007
褐柳鶯

lalan

6/11/2007
紅尾歌鴝
rufous-tailed robin

幾時先會停？
when it stop?

lalan

Dusky warbler
褐柳鶯

lalan

13/11/2007烏鶇Common blackbird

lalan

3/3/2008
Olive-backed Pitpit

lalan

政府終於在十八鄉路的隔音屏障加上這些猛禽貼紙了！
期望真的有效。
在此多謝觀鳥會各人的努力。
但這裡只是問題的冰山一角吧！

wcaptain

Hi Alan,

Thanks for your postings.

FYI. THey put these stickers on the Deep Bay Link in 2007. As far as we know, it is a policy to mitigate the bird collision problem in the new noise barriers.

However, for the old ones, they react very slow.....fortunately, they have done something.

Cheers,

Captain

lalan

22/4/2008
樹麻雀

yyattung

I can see the reflection of the barrier! That cause the birds colliding it.

lalan

Eyebrowed thrush 白眉鶇

lalan

1/8/08
相思
看來問題未解決

lchunfai

Quote:

Original posted by lalan at 2/08/2008 23:06
1/8/08
相思
看來問題未解決

這麼久,一定要透明麼 難道美觀比生命重要?
再不改便去信報館,揭發事情

lalan

10/8/08
相思

lchunfai

又有

HFCheung

I have asked George to look into the problem, to come up with some action on this.  If you have any information, please post it on, or talk to George.

HF Cheung

lalan

8月14日
紅耳鵯

和次前幾隻於差不多位置發現
難道和該處的榕樹果有關？？

kmatthew

They should use more brightly coloured tapes, instead of those fake falcons which are black and hard to see against backgrounds.

lchunfai

Quote:

Original posted by kmatthew at 16/08/2008 13:12
They should use more brightly coloured tapes, instead of those fake falcons which are black and hard to see against backgrounds.

I shouldn't be transparent

lalan

4/9/2008
珠頸斑鳩