id	keyword
american_scientific_journal-2871	road
american_scientific_journal-2871	system
american_scientific_journal-2871	traffic
american_scientific_journal-2871	rate
american_scientific_journal-2871	service
american_scientific_journal-2871	time
american_scientific_journal-2871	research
american_scientific_journal-2871	stretch
american_scientific_journal-2871	queue
american_scientific_journal-2871	journal
american_scientific_journal-2871	volume
american_scientific_journal-2871	queuing