Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO GTDP:2009
• Năm ban hành / Publication date: 2009
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: AASHTO Guidelines for Traffic Data Programs
• Thay thế cho / Replace: AASHTO GTDP:1992
• Số trang / Page: 288

Phạm vi áp dụng / Scope of standard

Introduction

Objective

The objective of the guidelines is to improve the quality of the
traffic information that supports decisions at all levels of the
transportation profession. Traffic data programs are essential for
state Departments of Transportation to accomplish their mission of
ensuring safety and mobility to the traveling public. Traffic data
supports capital investment programs and budgets, as well as
effective design and maintenance programs.

This document is a reference for professional traffic monitoring
and establishes recommended national traffic monitoring practices
that reflect current practice and advances made in the past several
years.

Background

The first edition of the American Association of State Highway
and Transportation Officials (AASHTO) Guidelines for Traffic
Data Programs was developed by an AASHTO Task Force that was
formed in 1990 and was composed of members of two AASHTO Committees
and representatives of the Federal Highway Administration (FHWA)
and the Strategic Highway Research Program. That edition built upon
and supplemented the 1985 edition of FHWA's Traffic Monitoring
Guide (TMG).

Since publication of the first edition of the guidelines in
1992, many advances have been made in traffic monitoring
procedures, and updated editions of the TMG were published in 1994
and 2001. This new edition of the Guidelines represents a general
updating of all material so the content reflects the current state
of the art and complements the TMG.

The guidebook is intended for use by state and local
transportation agencies, as well as others involved in traffic data
programs.