Abstract: A traveling route determination system of this disclosure includes a processor configured to operate so as to determine, by using a second route cost different from a first route cost that is used for determining a first traveling route for a first automated driving vehicle allocated with a demand of an on-demand mobility service, a second traveling route for a second automated driving vehicle not allocated with the demand.

Abstract: A method for managing travel includes: acquiring travel plan data of the vehicle and travel record data including a travel record of the vehicle traveling on a travel route included in the travel plan data; and generating scheduled and actual arrival time difference data indicating a first scheduled and actual time difference that is a difference between a scheduled time at which the vehicle arrives at a stopover point on the travel route and a time at which the vehicle arrives at the stopover point or a difference between a scheduled time at which the vehicle arrives at a destination point on the travel route and a time at which the vehicle arrives at the destination point, based on the travel plan data and the travel record data.

Abstract: A crushed polycrystalline silicon lump is provided in which a surface metal concentration is 15.0 pptw or less and preferably 7.0 to 13.0 pptw, and in the surface metal concentration, a surface tungsten concentration is 0.9 pptw or less and preferably 0.40 to 0.85 pptw, and a surface cobalt concentration is 0.3 pptw or less and preferably 0.04 to 0.08 pptw.

Abstract: A method for manufacturing polycrystalline silicon fragments includes producing a polycrystalline silicon rod by the Siemens method; crushing the polycrystalline silicon rod to obtain polycrystalline silicon fragments; and cleaning by etching the polycrystalline silicon fragments in a cleaning tank. In the cleaning, small pieces of the polycrystalline silicon having controlled shapes and sizes are present in the cleaning tank and the weight change of the small pieces of the polycrystalline silicon before and after the etching is measured to thereby manage the cleaning.

Abstract: A traveling route determination system of this disclosure includes a processor configured to operate so as to determine, by using a second route cost different from a first route cost that is used for determining a first traveling route for a first automated driving vehicle allocated with a demand of an on-demand mobility service, a second traveling route for a second automated driving vehicle not allocated with the demand.

Abstract: A program according to an aspect of the present invention is a computer program for causing a computer to function as a device for dispatching a vehicle to a user, the computer program causing the computer to function as: an acquisition unit configured to acquire a vehicle dispatch request; and an information processing unit configured to select candidate vehicles that are candidates to be dispatched to the user, in accordance with the acquired vehicle dispatch request, wherein, when the selected candidate vehicles include an electric vehicle, the information processing unit determines the electric vehicle to be dispatched, on the basis of a charging priority of an area including a riding position of the user or a current position of the electric vehicle, a charging priority of an area including a destination of the user, and a remaining battery charge of the electric vehicle.

Abstract: A recommended traveling speed provision program according to one aspect of the present disclosure causes a computer to function as: an acquisition unit configured to acquire, from probe vehicles, pieces of probe information each including information of a time within a predetermined time period and a position of the corresponding probe vehicle at the time; a representative traveling speed calculation unit configured to calculate a representative traveling speed that is a representative value of traveling speeds of the probe vehicles, based on the pieces of probe information acquired by the acquisition unit; a recommended traveling speed calculation unit configured to calculate a recommended traveling speed, based on the representative traveling speed calculated by the representative traveling speed calculation unit; and a provision unit configured to provide the recommended traveling speed calculated by the recommended traveling speed calculation unit to a target vehicle.

Abstract: A crushed polycrystalline silicon lump is provided in which a surface metal concentration is 15.0 pptw or less and preferably 7.0 to 13.0 pptw, and in the surface metal concentration, a surface tungsten concentration is 0.9 pptw or less and preferably 0.40 to 0.85 pptw, and a surface cobalt concentration is 0.3 pptw or less and preferably 0.04 to 0.08 pptw.

Abstract: A driving safety support system according to one aspect of the present disclosure includes a server, and a safety driving assistant device. The server performs operations including: acquiring, from probe vehicles, probe information including information of a time within a predetermined time period and a position of the corresponding probe vehicle at the time; calculating, based on the probe information, a traffic congestion tail position located upstream of a branch point at which a road branches into a plurality of lanes; and calculating a lane-change recommendation section in which a lane change is recommended based on the traffic congestion tail position. The safety driving assistant device performs operations including executing a driving safety support process for a target vehicle based on the lane-change recommendation section.

Abstract: A method for manufacturing polycrystalline silicon fragments includes producing a polycrystalline silicon rod by the Siemens method; crushing the polycrystalline silicon rod to obtain polycrystalline silicon fragments; and cleaning by etching the polycrystalline silicon fragments in a cleaning tank. In the cleaning, small pieces of the polycrystalline silicon having controlled shapes and sizes are present in the cleaning tank and the weight change of the small pieces of the polycrystalline silicon before and after the etching is measured to thereby manage the cleaning.

Abstract: A computer program according to an aspect of the present disclosure is a computer program for causing a computer to function as a vehicle speed estimating device. The program causes the computer to function as a data processing unit executing: an extraction process of extracting a speed transition section which includes a plurality of target points and in which a statistical speed gradually decreases from a speed not lower than a high-speed threshold to a speed not higher than a low-speed threshold; a calculation process of calculating a propagation speed of traffic congestion on the basis of a first speed sequence having, as elements, statistical speeds at the plurality of target points included in the speed transition section; and an estimation process of estimating a vehicle speed in a predetermined section including the speed transition section, on the basis of the propagation speed.

Abstract: A safety driving assistant system according to one aspect of the present disclosure includes: an acquisition unit configured to acquire pieces of probe information from probe vehicles, each piece of probe information including information of a position of the corresponding probe vehicle and information of a time at which the probe vehicle has passed through the position; a detection unit configured to detect a sudden-deceleration-prone spot where sudden deceleration of probe vehicles frequently occurs, based on the pieces of probe information acquired by the acquisition unit; and a provision unit configured to provide information of the sudden-deceleration-prone spot detected by the detection unit, to a target vehicle that receives safety driving assistance.

Abstract: A safety driving assistant system according to one aspect of the present disclosure includes a server, and a target vehicle receiving safety driving assistance. The server includes: an acquisition unit configured to acquire, from probe vehicles, probe information including information of a time within a predetermined time period and a position of the corresponding probe vehicle at the time; and a tail position calculation unit configured to calculate, based on the probe information acquired by the acquisition unit, a traffic congestion tail position located upstream of a branch point at which a road branches into a plurality of lanes. The safety driving assistant system further includes a recommendation section calculation unit configured to calculate a lane-change recommendation section in which a lane change is recommended, based on the traffic congestion tail position calculated by the tail position calculation unit.

Abstract: A safety driving assistant system according to one aspect of the present disclosure includes: an acquisition unit configured to acquire pieces of probe information from probe vehicles, each piece of probe information including information of a position of the corresponding probe vehicle and information of a time at which the probe vehicle has passed through the position; a detection unit configured to detect a sudden-deceleration-prone spot where sudden deceleration of probe vehicles frequently occurs, based on the pieces of probe information acquired by the acquisition unit; and a provision unit configured to provide information of the sudden-deceleration-prone spot detected by the detection unit, to a target vehicle that receives safety driving assistance.

Abstract: A recommended traveling speed provision program according to one aspect of the present disclosure causes a computer to function as: an acquisition unit configured to acquire, from probe vehicles, pieces of probe information each including information of a time within a predetermined time period and a position of the corresponding probe vehicle at the time; a representative traveling speed calculation unit configured to calculate a representative traveling speed that is a representative value of traveling speeds of the probe vehicles, based on the pieces of probe information acquired by the acquisition unit; a recommended traveling speed calculation unit configured to calculate a recommended traveling speed, based on the representative traveling speed calculated by the representative traveling speed calculation unit; and a provision unit configured to provide the recommended traveling speed calculated by the recommended traveling speed calculation unit to a target vehicle.

Abstract: A control plate is provided at a preferred position in a storm overflow chamber. An inflow pipe, an intercepting pipe, and an outflow pipe are connected to the storm overflow chamber. A vortex flow type water surface control device for a draining device includes the overflow chamber, and a control plate arranged in front of an opening portion of the intercepting pipe opening to the storm overflow chamber. A relation (1) 0.5 D?X?0.7 D and 0.83 D?Y?1.5 D holds true, or a relation (2) 0.4 D?X?0.5 D and 1.0 D?Y?1.5 D holds true, where D represents an inner diameter of the opening portion, X represents a projection length of the control plate with respect to the opening portion, and Y represents a distance between the control plate and the opening portion. As a result, contaminants enter the intercepting pipe.

Abstract: A device for producing a cleaned crushed product of polycrystalline silicon blocks is provided with: a) a conveying belt conveyer for a crushed product of polycrystalline silicon blocks; b) a gas stream-injector for blowing away fine powders mixed in the crushed product of polycrystalline silicon blocks, the injector being placed above a travel surface of the conveying belt of the conveying belt conveyer; and c) a mesh for preventing scattering of the crushed product of polycrystalline silicon blocks, the mesh being placed between the travel surface of the conveying belt and the gas stream-injector.

Abstract: This traffic simulator is provided with a simulator engine unit for performing computation on the basis of a formula representing a movement model for a vehicle, a traffic volume calculation unit for calculating a generated traffic volume and a removed traffic volume on the basis of a given OD traffic volume, an estimated congestion length calculation unit for calculating (estimating) an estimated congestion length for each link on the basis of the calculated traffic volume thereof, an origin and destination generation unit for generating an origin traffic volume and an destination traffic volume to adjust the estimated congestion length on the basis of the difference between the estimated congestion length and the measured congestion length, a storage unit for storing predetermined information, and an evaluation condition setting unit for setting evaluation conditions for evaluating the traffic various quantities metrics.

Abstract: In a conventional storm overflow chamber of a combined sewer system, inflowing floating debris do not flow into an intercepting pipe in a rainy weather, and flow out to a public water body, causing a water pollution in the public water body. According to a vortex flow type water surface control device for a draining device of the present invention, a control plate (6) higher than at least a separating weir (1) is provided between an opening of an inflow pipe (2) and an opening of an intercepting pipe (3) in a storm overflow chamber of a combined sewer system. Moreover, a guide wall (7) higher than at least the separating weir (1) is provided along the separating weir between the opening of the inflow pipe (2) and the separating weir (1).

Abstract: This traffic simulator is provided with a simulator engine unit for performing computation on the basis of a formula representing a movement model for a vehicle, a traffic volume calculation unit for calculating a generated traffic volume and a removed traffic volume on the basis of a given OD traffic volume, an estimated congestion length calculation unit for calculating (estimating) an estimated congestion length for each link on the basis of the calculated traffic volume thereof, an origin and destination generation unit for generating an origin traffic volume and an destination traffic volume to adjust the estimated congestion length on the basis of the difference between the estimated congestion length and the measured congestion length, a storage unit for storing predetermined information, and an evaluation condition setting unit for setting evaluation conditions for evaluating the traffic various quantities metrics.