Reducing Head-On Crashes on Freeways

Index of Strategies by Implementation Timeframe and Relative Cost

Exhibit IV-1. provides a classification of strategies according to the expected time frame and relative cost for this emphasis area. In several cases, the implementation time will be dependent upon such factors as the agency's procedures, the number of stakeholders involved, and the presence of any controversial situations. The range of costs may also be somewhat variable for some of these strategies, due to many of the same factors. Placement in the table below is meant to reflect costs relative to the other strategies listed for this emphasis area only. The estimated level of cost is for the commonly expected application of the strategy, especially one which does not involve additional right-of-way or major construction, unless it is an inherent part of the strategy.

EXHIBIT IV-1
Strategies Classified by Relative Cost and Time Necessary for Implementation

Timeframe for Implementation	Strategy	Relative Cost to Implement and Operate
		Low	Moderate	Moderate to High	High
Less than a year	18.2.A1—Install Left Shoulder Rumble Strips
	18.2.A2—Provide Enhanced Pavement Markings and Median Delineation
	18.2.D1—Designate "Highway Safety Corridors"
	18.2.D2—Conduct Public Information and Education Campaigns
Medium (1—2 years)	18.2.A3—Provide Improved Pavement Surfaces
	18.2.B4—Implement Channelization, Signing and Striping Improvements at Interchanges Susceptible to Wrong-Way Movements
	18.2.E1—Enhance Agency Crash Data Systems
	18.2.B2—Improve Median Design for Vehicle Recovery
	18.2.C1—Improve Design and Application of Barrier and Attenuation Systems
Long (>2 years)	18.2.B3—Install Median Barriers for Narrow-Width Medians
	18.2.B1—Provide Wider Medians