Roadside development was investigated from all facets. A history of efforts to guide the practical applications of roadside development to America's rapidly growing highway system is summarized. The primary premise that highway location and design must be attractive as well as utilitarian has been expanded to include the right of way land, scenic areas, and land adjacent to the highway. Conservation of natural resources in highway design and construction is emphasized. Erosion control, landscape plantings, roadside rest areas, scenic turnouts and overlooks are discussed in terms of planning, design, and materials. Safety, maintenance, and future aspects of roadside development are also considered. legal authority and techniques for development are appended.

The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.

This document presents a synthesis of current information and operating practices related to roadside safety and is developed in metric units. The roadside is defined as that area beyond the traveled way (driving lanes) and the shoulder (if any) of the roadway itself. The focus of this guide is on safety treatments that minimize the likelihood of serious injuries when a driver runs off the road. This guide replaces the 1989 AASHTO "Roadside Design Guide."