It takes the average reader 1 hour and 15 minutes to read Safety Impacts of Design Exceptions by Nataliya V. Malyshkina
Assuming a reading speed of 250 words per minute. Learn more
Compliance to the Indiana Department of Transportation's (INDOT) highway design criteria is considered essential to ensure the roadway safety. However, for a variety of reasons, situations arise where exceptions to standard-design criteria are requested and accepted after review. This research explores the impact that design exceptions have on the accident severity and accident frequency in Indiana. Data on accidents at 36 roadway sites with design exceptions and 71 without design exceptions are used in this research, and appropriate statistical models are estimated for the severity and frequency of these accidents. The results of the detailed statistical modeling show that presence of design exceptions, approved by INDOT, do not have a statistically significant adverse effect on the frequency or severity of accidents. While the data are too limited to investigate the effect of specific design exceptions (the number of Level One design exceptions granted is a modest number), the research herein shows that INDOT procedures for granting design exceptions have been sufficiently strict to avoid adverse safety consequences and that current practices should be continued. To guide future Level One design exceptions, the detailed statistical findings of this research effort suggest that using previous design exceptions as "precedents" would be the best way to proceed. To this end, it is recommended that INDOT maintain a database of Level One design exceptions.
Safety Impacts of Design Exceptions by Nataliya V. Malyshkina is 74 pages long, and a total of 18,796 words.
This makes it 25% the length of the average book. It also has 23% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 1 hour and 42 minutes to read Safety Impacts of Design Exceptions aloud.
Safety Impacts of Design Exceptions is suitable for students ages 8 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
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