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48	        Big	Data	Analytics	for	Connected	Vehicles	and	Smart	Cities	                	                         What Is Big Data?	                       49


                                        Table 3.4
                                Traffic Management Data Sources
                               Traffic Signal Timing
                               Traffic speed
                               Traffic volume
                               Intersection turning movement counts
                               Travel times between intersections
                               Number of incidents
                               Duration of incidents
                               Response times for incidents



                                        Table 3.5
                                Traveler Information Data Sources
                               Traveler Information
                               Demand for travel
                               Travel conditions
                               User preferences
                               Cost of travel
                               Reliability of travel time
                               Availability of travel options
                               Best route options
                               Ride matching options



          Public Transportation Management
          Public transportation management includes activities required to manage the
          fleet of transit vehicles and provide passenger information. It includes the man-
          agement of fixed route, paratransit, and flexible route services. Fixed-route ser-
          vices follow a predefined route and schedule. Paratransit services are typically
          on-demand and available to transportation disadvantaged customers who can-
          not travel by the other public transportation services. In recent times flexible
          route services have been introduced that combine some aspects of fixed-route,
          with some aspects of on-demand. For example, one approach to flexible-route
          services would be to assign a bus within the zone or region and allow customers
          to call the bus service on-demand. The customer would be able to request bus
          service from the residence to any point within the zone or to the closest access
          point to fixed-route services. Table 3.6 lists data possibilities.

          Electronic Payment
          These are designed to make it easier for travelers to pay for transportation ser-
          vices. They include electronic toll collection, electronic ticketing for transit, and
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