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PAPER:  
 Dias, F.F., G.S. Nair, N. Ruiz-Juri, C.R. Bhat, 
  and A. Mirzaei (2020), "Incorporating Autonomous Vehicles in the Traditional Four-Step Model," Transportation Research Record, Vol. 2674, No. 7, pp. 348-360 (Keywords: autonomous 
	vehicles, AVs, self-driving vehicles, demand model, four-step model).  
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