Toru Yamashita Authority of Miwa
Role of roadside tree
Smooth traffic that roadside tree plans protection of comfortable living environment and creation of good road scenery, and security of road wins
It is road installations necessary to find.
Improvement in scenery function (function to create clean cityscape)
・We harmonize road with neighboring scenery, vegetation
・We make road scenery beautiful and can view
Living environment protection function (function to protect comfortable living environment)
・We protect car from strong sunlight with people
・We prevent influence of wind, snow, smoke harm (exhaust gas)
Road safety function (function to secure smooth road traffic by security)
・From traffic lane fly, and absorb shock of oxcart with kimonos protruding from behind the screen (and ensure the security of walker)
・Direction confirmation of the present position of driver
・Eyes instruction of driver
Disaster prevention function (function to restrain reduction, expansion of damage at the time of disaster)
・We weaken force of blizzard
・Prevention of spread of fire at the time of fire
Maintenance of roadside tree
As citizen's precious property, to show function to have of roadside tree enough, and to maintain healthy, beautiful tree,
Other than periodical patrol and pruning, it is the risk of fallen tree for securing of security, reliable road environment in some cases
We perform removal of roadside tree becoming trouble in a certain withering and being damaged tree and road safety of this.
Main maintenance work that we carry out
Withering and being damaged tree, roadside tree that the pruning is necessary to find safety of traffic of vehicle and walker including early detection of dangerous tree
There is not or carries out patrol regularly.
In addition, branch which confirmed the damage situation as needed when typhoon and heavy rain, blizzard occurred, and was broken
For removal such as this or fallen tree, we carry out urgent patrol.
Because it is necessary to secure constant space so that there is not with trouble of vehicle and walker in the road, we cut branch
After checking nado, the local situation, we carry out the pruning work premeditatedly once in several years.
Removal of withering and being damaged tree, dangerous tree
Withering and being damaged tree, dangerous tree which cannot anticipate recovery for reasons of the damage in progress of number of years after plant by fallen trees human
And we make removal (felling) immediately because we may bring material damage.
Management such as tree planting zone, tree planting measure
We carry out mowing and weeding in tree planting zone, tree planting measure using 1-2 times as an indication based on the local situation sequentially at appropriate time in year
We are doing. In addition, we perform garbage picking around tree planting zone, the tree planting measure regularly.
Requests such as fallen leaves for cleaning
To who lives in roadside and the outskirts of roadside tree every year that tree leaf which changed color dies before long and falls nuisance
We have a seat, but I would like understanding, cooperation for fallen leaves cleaning.
Roadside tree redevelopment plan
We create beautiful scenery as green of city area, and roadside tree protects comfortable living environment and plays a variety of roles
On the other hand, several decades pass after was planted, troubles such as rot, fallen tree by old lignification and great lignification, roots above ground of the sidewalk
Example to cause comes to be frequent, and increase of administrative expense is anticipated and keeps roadside tree original role and figure
Thing becomes difficult.
Based on such situation, secure security, reliable traffic environment in Kitami-shi in March, 2016, of maintenance cost
For the purpose of performing reduction, appropriate maintenance as enforcement policy for problem and guideline of future maintenance,
We devised "Kitami-shi roadside tree redevelopment plan".
Based on plan, we will push forward correspondence and maintenance of problem in future.
Main maintenance policy (concrete approaches)
・Removal of withering and being damaged tree, dangerous tree
・Removal of roadside tree becoming trouble in road safety
・Improvement of roots above ground point
・Update of roadside tree
・Maintenances that cooperated with area
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