id	keyword
american_scientific_journal-6814	accidents
american_scientific_journal-6814	variables
american_scientific_journal-6814	traffic
american_scientific_journal-6814	curve
american_scientific_journal-6814	frequency
american_scientific_journal-6814	distribution
american_scientific_journal-6814	analysis
american_scientific_journal-6814	severity
american_scientific_journal-6814	injuries
american_scientific_journal-6814	lane
american_scientific_journal-6814	road
american_scientific_journal-6814	group
american_scientific_journal-6814	engineering
american_scientific_journal-6814	journal