Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO FCAH:1990
• Năm ban hành / Publication date: 1990
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Informational Guide on Fencing Controlled Access Highways
• Số trang / Page: 15

Phạm vi áp dụng / Scope of standard

Introduction: Fencing along a highway is a means of preventing
unwanted and likely intrusion of animals, people, vehicles,
machines, etc., from outside the right-of-way line or access
control line into the vicinity of moving traffic or onto the
operating right-of-way. This applies to both full or partial
controlled facilities.

The fencing along highways has generally grown from an adjacent
owner responsibility to that of the highway agency. This change has
occurred for many reasons, primarily for control of animal
movement, pedestrian movement, and vehicle encroachment--ail to
maintain a safe environment for the highway user. One might say,
rather than protection of the adjacent land and property, it is now
the responsibility of the highway agency to provide protection for
the motorist. This would be true for the urban area as well as the
rural area. Even though some states have open range areas, the
highway agency should work cooperatively with adjacent owners to
facilitate safety concerns and the erection of access control
facilities.

Controlled access highway operation, wherein drivers move at
high speeds with expectation of protection from all forms of
roadside interference, makes fencing the responsibility of the
highway agency. Fencing should be provided wherever there is
potential encroachment. All portions of a controlled access highway
should be continuously fenced unless it can be established that a
fence is not warranted; such as in areas of precipitous slopes or
natural barriers. Wherever the safety of highway operation requires
fencing, it should be considered as an essential part of the total
highway facility, constructed as a highway item.