'Aashto roadside design guide' diaporamas de présentation

Introduction

554 views • 47 slides

Wyoming DOT

Wyoming DOT. Place guardrail when there is a fill slope of 3:1 or steeper located within the clear zone Their clear zone requirements match the AASHTO guide. Alaska DOT. Developed a spreadsheet for conducting a cost-effectiveness analysis on variant obstacles

479 views • 25 slides

Caldwell and Wilson (1999)

Caldwell and Wilson (1999). 1. Determine primary rating factor for a road section based on traffic volume and user types. 2. Primary rating factor is then modified by an adjustment factor accounting for speed, terrain, and heavy vehicles.

359 views • 25 slides

CE 453 Highway Design Iowa State University Highway Design Criteria Overview

CE 453 Highway Design Iowa State University Highway Design Criteria Overview. April 24, 2006 David R. Dougherty, P.E. Some Basics. Highway Design is a Science and an Art

474 views • 22 slides

325 views • 16 slides

INTRODUCTION

INTRODUCTION. This chapter presents guidance on the application of geometric design criteria to facilities functionally classified as collector roads and streets.

210 views • 12 slides