When it comes to the severity of injuries across speed limits, Ward 2 is about in line with the rest of the city. Additionally, there are not large discrepancies in injury severity rates across speed limits, indicating that either speed limit has a minimal impact on the severity of traffic injuries, or that both the City of Chicago and Ward 2 are already taking effective measures to account for the impact of speed limit on the severity of traffic accidents. Thus, in general, adjusting speed limits should not be a focal point of traffic safety policy, as they are not shown to have a significant impact on the severity of traffic accidents.