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Staged collision test data includes instrumentation in order to measure acceleration time histories, force time histories and other engineering parameters. The output from these instruments allows the analysis of vehicle energy absorption and collision pulse shape characteristics. Additionally, crash test repeatability, velocity sensitivity, and the influence of rigid versus deformable barriers may be investigated. The present study analyzes collision pulse shapes including analytical relationships and pulse parameters. Closed form functions are applied and compared to the observed experimental pulse shapes. Differences between analytical predictions and observed experimental results are explored. Techniques are presented whereby collision pulses can be analyzed and applied to the reconstruction of real world automobile collisions. The use of acceleration time histories and crash test data in the determination of vehicle structural characteristics is investigated.