Traffic index computation device, computation method, traffic signal control system, and computer program
AssigneeSumitomo Electric System Solutions Co., Ltd.
InventorHajime SAKAKIBARA
Life of this patent
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Abstract
A device for calculating a traffic index that is required for calculation of a signal control parameter. The device includes: a first calculation unit that calculates normalized data representing a ratio of a traffic variable of an inflow road at a target intersection to a saturation flow rate; and a second calculation unit that calculates, by using the normalized data, the traffic index that is defined by a formula in which the traffic variable of the inflow road is included in a numerator and the saturation flow rate is included in a denominator.
Claims11
A traffic index calculation device configured to calculate a traffic index that is required for calculation of a signal control parameter, comprising:
- a first calculation unit configured to calculate normalized data representing a ratio of a traffic variable of an inflow road at a target intersection to a saturation flow rate;
- and
- a second calculation unit configured to calculate, by using the normalized data, the traffic index that is defined by a formula in which the traffic variable of the inflow road is included in a numerator and the saturation flow rate is included in a denominator.
A traffic index calculation method for calculating a traffic index that is required for calculation of a signal control parameter, the method comprising:
- a first step of calculating normalized data representing a ratio of a traffic variable of an inflow road at a target intersection to a saturation flow rate;
- and
- a second step of calculating, by using the normalized data, the traffic index that is defined by a formula in which the traffic variable of the inflow road is included in a numerator and the saturation flow rate is included in a denominator.
A non-transitory computer readable storage medium storing a computer program for causing a computer to function as a device for calculating a traffic index that is required for calculation of a signal control parameter,
- the computer program causing the computer to function as:
- a first calculation unit configured to calculate normalized data representing a ratio of a traffic variable of an inflow road at a target intersection to a saturation flow rate;
- and
- a second calculation unit configured to calculate, by using the normalized data, the traffic index that is defined by a formula in which the traffic variable of the inflow road is included in a numerator and the saturation flow rate is included in a denominator.
Dependencies are inferred from the claim text.