Mid-America Transportation Center


Date of this Version


Document Type



Report # MATC-MU: 185 Final Report 25-1121-0003-185


2013 Copyright of Mid-America Transportation Center


The Missouri HAL manual is used to identify, analyze, and correct high crash locations, and has not been updated since 1999. This new edition brings the manual up to date, while incorporating the methodology of the national Highway Safety Manual (HSM). This 4th edition represents a complete re-working of all existing chapters of the manual. The changes are both stylistic and substantive. A contemporary book-style stylesheet was used to improve the appearance of figures, tables, headings, and labels. Even the title of the manual was changed from HAL (Identification, Analysis, and Correction of High-Crash Locations) to S-HAL (Safety Handbook for Locals) in order to reflect current trends in highway safety. The section on countermeasures has been improved significantly through the incorporation of the HSM approach to analyzing countermeasure effectiveness. Further, the manual now incorporates a partnership-based approach to safety. This edition takes full advantage of the availability of safety information, becoming the gateway for many additional sources.