(1).Landscape and Vegetation
The Bureau manages the greenery on it lands, estimated total greenery coverage to 2,692 hectares, 494 thousand trees and 2.79 million shrubs. The vegetation landscaping task goes mainly as follows:
A. Road Cleaning Work and Vegetation Maintenance In addition to the currently scheduled daily outer road shoulder garbage collection, and weekly sweeps, the work crew combines inner road shoulder sweeps and garbage collection to twice or four times per month. This year, we kept on deploying inner signing cars and mobile anticollision facilities to ensure the safety of work crew and road user. Any maintenance work must be implemented during non-rush hours to keep traffic flow smooth. The maintenance work has to be stopped, and the work crew must evacuate as soon as possible if the operation causes a traffic jam stretching for 5km, or an average road speed of less than 30 kilometers per hour. A meeting was called on August 25 2011 in this office for the review of general operations performance. Based on the conclusions reached in the meeting and the Guideline for Traffic Control for Construction Works revised in October 2011, the operation instructions were revised and incorporated into the contract 2012 for implementation and they include:
a). The adding of signing cars with mobile anti-collision facilities to mobile and transient construction on inner lanes and the uniform specifications, standards as well as implementation regulations for anti-collision facilities.
b). The adding of punitive measures to working personnel standing on Jersey barriers without erecting traffic control measures or without having participated in construction safety training programs among other violations.
c). All short-term, temporary or mobile construction vehicles parked on shoulders must be in yellow-color car body with a yellow-color warning light on the top of the vehicle.
B. Strengthen the landscape improvement of key nodes and slopes
The most important landscape improvements are as follows: planting ornamental plants in the visual focus areas of road users like main road sides, interchanges and service areas; covering the retaining walls, bridge piers and noise barriers by planting vines and bushes; and planting native or adaptive species on the slopes along the freeways to accelerate ecological successions and restore natural scenes. The details of landscape improvement projects including planting and contract award that were completed or contracted out in this year are as follows:
a). As highlighted landscaping works, they are the reinforcement works for central median landscape of National Freeway Linkou upper and lower separation lane and Kaohsiung metropolitan area slope planting beautification works in the National Freeway No. 1).
b). For the Plains Reforestation Program of the Forest Bureau, our bureau the slope greenery land for forestation in natural environment:
I.Central Region Engineering Office District:
The green forestation program materialized in Yunlin System Interchange, National Freeway No. 1 and Kuaiguan Interchange, National Freeway No. 3 (totaling 25.3 hectares) included 23,823 trees that remain under preservation. The forestation program carried out this year in the open area beneath the Puyan Interchange and Yunlin System Interchange overpasses, National Freeway No. 1 (totaling some 10 hectares) was completed in November and 9,980 trees where planted. Additionally, open areas beneath Zhonggang System Interchange (totaling some 12.8 hectares), Caotun Interchange to Zhushan Interchange (totaling 43.2 hectares) will also be designated as lands for forestation.
II.Southern Region Engineering Office District:
In addition to the forestation program materialized in the slopes and open areas by the Shueishang System Interchange, Tainan Interchange to Zhutian System Interchange and Pingtung Section District in the National Freeway No. 3, forestation was carried out between June and July this year in the slopes on the interchanges in Gangshan Section District and the open areas on the interchanges in Rende System, Luzhu, Gaoke, Gangshan, Dingjin System in National Freeway No. 1, where 14,115 trees were planted (in approximate 17.6 hectares).
C. Landscape Improvement Projects in Incorporation with Freeway Widening Construction or Facilities
To preserve green resources and reduce the impact of construction projects on the vegetation, the planning of transplantation and new plantation had been processed incorporating with the widening construction. Upon completion of the contract for the widening project of National Freeway No. 2, the new plantation work under Contract H20B (between Dayuan and Dazhu Interchanges) began in late September 2010. The works were successfully completed in February 2011 for maintenance after passing tests.
D. Evaluation of the adoption of National Freeway Interchange and Slope Landscape Maintenance There are 42 organizations this (2011) year participating in the contest of adoption of landscape maintenance of interchanges, slopes and the areas under viaduct. Among them, 8 organizations were initially rated by engineering offices at 80 and more points. After having been repeatedly rated, Weide Neighborhood Office in Sanchong District that had adopted the side slop green to the right side northbound of the Sanchong Interchange, National Freeway No. 1 and Miaoli County Government, which had adopted the greenery lands in National Freeway No. 1 and National Freeway No. 3 interchanges in Miaoli County, were appraised publicly by this office as both met the criteria for rewarding.
E.Prevention and Removal of Foreign Invasive Species
Invasive species, such as Mikania micrantha, Eupatorium odoratum Linn and Leucaena leucocephala grow and spread rapidly to cause a considerable threat to the local flora. thus inaccordance with Forestry Bureau’s recommendation with current prevention, the Bureau established hacking away plans in May 2005 to positively accelerate vegetation restoration on slopes to establish biodiversity to prevent reinvasion. Effective 2006, these data will be taken from January to February each year to the Epidemic Species Research Institute of Council of Agriculture to assess progress of actual species spread and total removal areas to
closely monitor the scale of the invasion. The treatments of this year are as follows:
In May each year, a survey is conducted on growth and areas of spreading to verify the area of eradication; a monthly eradication is conducted between July and September and in the blossoming period between October and November, another survey is conducted on remaining areas for evaluation of performance of the effort. This year, the effort covered 24.14 hectares including Guanxi, Miaoli, Dajia, Nantou, Dounan, Baihe and the areas in the jurisdictional sections in the Pingtung District.
(b).Eupatorium odoratum Linn:
Pursuant to the eradication and survey and monitoring timing for mikania micrantha, a thorough pruning is conducted between August and October and in the blossoming period between December and January, a survey is conducted on remaining areas. This year, the effort covered 4.47 hectares in Baihe and the areas in the jurisdictional sections in the Pingtung District.
Due to the manpower and budget available, pruning on an irregular basis is conducted along with new plantations or maintenance tasks. In the area of eradication, a variety of tree and shrub species are planted to keep alien species from coming in.
F.Research and Development
In order to learn potential ecological impacts on the facilities and landscaping efforts along the national freeways before defining development strategies for sustainable use to assure road building according to the environment, our bureau has invited Observer Ecological Consultant Co., Ltd. to prepare the Sustainable Development and Environmental Restoration Plan for National Freeways, which became effective in December 2008. In November 2011, the final report filed included sustainable management frameworks and objectives for the national freeways, survey on ecological resources along the national freeways, evaluation and grading of ecologically sensitive sections in the national freeways and national freeway fatalities survey and analysis among others. Animal protection measures in 5kms were properly improved. On October 24, 25, a number of successful works were made public in the National Freeway Sustainable Management and Environmental Restoration Seminar.
(2).Red Imported Fire Ants (RIFA) Control
In May 2004 and based on the resolutions reached in the 1st National Conference for Prevention and Eradication called by the Bureau of Animal and Plant Health Test and Quarantine, Council of Agriculture, our bureau conducted a plague survey in all national freeways that covered 110 hectares, where active measures were implemented. As of 2011, the effort of prevention and eradication of alien red fire ants waged by this office covered 8 areas including the left side of the northbound entrance loop of the Sanying Interchange, the National Freeway No. 3 at 67k+400 and the southbound at 65k+400 in 4 spots totaling 55.5 hectares (46.4hectares in the National Freeway No. 1, 5.1 hectares in the National Freeway No. 2 and 4 hectares in the National Freeway No. 3), all in the jurisdiction of the Northern Region Engineering Office. Besides, in the worksites of the National Freeway No. 1 at 52k~60k and the Neili Interchange in the Wugu Yangmei Section in the National Freeway No. 1, where widening works are conducted, and the prevention and eradication efforts are currently waged by TANFB. While conducting regular maintenance and patrols, our bureau is implementing relevant measures within 1 week upon detecting red fire ants. A bi-weekly monitoring follows and on a monthly basis, performance of the effort is published on the Website for Plant Health Inspection and Quarantine, BAPHIQ. In areas restrictive measures have been lifted, ongoing monitoring and medication is implemented to keep new occurrences from taking place. Further, in the contract entered by this office for new plantations and road works, mobile quarantine for fire ants in new plants and earths is specified to minimize spreading and infection rates as a way to avoid further spreading.
Date of Posting :2007-12-06
Source of Information:Construction Div.