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FHWA Home / Safety / Local and Rural Road / Intersection Safety: A Manual for Local Rural Road Owners

Intersection Safety: A Manual for Local Rural Road Owners

Table of Contents

Long Description: Figure 2. Steps to Address Intersection Safety

This diagram depicts the steps necessary to address Intersection Safety, as follows:

Step 1: Identify Intersection Safety Issues (Manual: Section 2)

Safety issues can be identified by collecting crash history, roadway, and exposure information from the following sources:

Step 2: Record Information for Safety Analysis (Manual: Table 1)

Compile information in a table that includes the source of the information, the type of problem, and other attributes of the crash, observation, or notification.

Steps 3 and 4: Data Analysis, Countermeasure Selection, and Installation

Depending on the approach, the order of data analysis, countermeasure selection, and countermeasure selection may vary.

The possible approaches that can be taken are either:

  1. the spot location approach and systematic approach (crash type focus) or
  2. the systematic approach (countermeasure focus).

For the spot location approach and Systematic approach (crash type focus), steps 3 and 4 are presented below in a side-by-side format:

Spot Location Approach and Systematic Approach
(Crash Type Focus)
Systematic Approach
(Countermeasure Focus)

Step 3: Analyze Data (Manual: Section 3)

Data can be analyzed in the following ways, based on the available information:

  • Crash frequency
  • Crash rate calculations
  • Qualitative analysis

Step 3: Select Countermeasure (Manual: Section 4)

Develop a list of countermeasures and thresholds for their application (e.g., crash frequency, crash type, traffic volumes).

Step 4: Select and Install Countermeasures (Manual: Section 4)

Details from crash data and analysis feeds the countermeasure selection process.

  • Enhanced signing
  • Transverse rumble strips
  • Clear sight triangles
  • Other

Step 4: Analyze Data and Install Countermeasures (Manual: Sections 3 and 4)

  • Search crash data for the criteria defined in Step 3.
  • Determine cost-effective level of deployment for each countermeasure.


Step 5: Assessment and Follow-up (Manual: Section 5)

Evaluate intersection safety treatments after installation.


Return to Figure 2.

Page last modified on September 5, 2011
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