Traffic signal cycle estimation device and traffic signal cycle estimation method
First Claim
1. A traffic signal cycle estimation device comprising:
- an electronic control unit, including executable program logic, configured to perform;
acquiring travel time data of plural vehicles, wherein said travel time data is generated by the plural vehicles and transmitted from the plural vehicles to the electronic unit;
analyzing the travel time data to acquire a traffic signal section travel time that is a time taken from entrance of the plural vehicles into a predetermined traffic signal section that corresponds to a traffic signal until the plural vehicles pass through the traffic signal section;
calculating a frequency distribution of the traffic signal section travel times;
determining a first travel time group in which the vehicle does not stop at the traffic signal and a second travel time group in which the vehicle stops at the traffic signal on the basis of the frequency distribution of the traffic signal section travel times; and
estimating cycle information of the traffic signal on the basis of a difference between the first travel time group and the second travel time group.
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Accused Products
Abstract
A traffic signal cycle estimation device 2 is provided, which includes a travel time acquisition unit 4 acquiring a traffic signal section travel time, a frequency distribution calculation unit 5 calculating a frequency distribution of the traffic signal section travel times on the basis of the traffic signal section travel times, a travel time group determination unit 6 determining a first travel time group in which the vehicle does not stop at the traffic signal and a second travel time group in which the vehicle stops at the traffic signal on the basis of the frequency distribution of the traffic signal section travel times, and a traffic signal cycle estimation unit 7 estimating cycle information of the traffic signal on the basis of a difference between the first travel time group and the second travel time group.
13 Citations
8 Claims
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1. A traffic signal cycle estimation device comprising:
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an electronic control unit, including executable program logic, configured to perform; acquiring travel time data of plural vehicles, wherein said travel time data is generated by the plural vehicles and transmitted from the plural vehicles to the electronic unit; analyzing the travel time data to acquire a traffic signal section travel time that is a time taken from entrance of the plural vehicles into a predetermined traffic signal section that corresponds to a traffic signal until the plural vehicles pass through the traffic signal section; calculating a frequency distribution of the traffic signal section travel times; determining a first travel time group in which the vehicle does not stop at the traffic signal and a second travel time group in which the vehicle stops at the traffic signal on the basis of the frequency distribution of the traffic signal section travel times; and estimating cycle information of the traffic signal on the basis of a difference between the first travel time group and the second travel time group. - View Dependent Claims (2, 3, 4)
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5. A traffic signal cycle estimation method comprising:
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acquiring travel time data of plural vehicles from the plural vehicles, wherein said travel time data is generated by the plural vehicles; analyzing the travel time data to acquire a traffic signal section travel time that is a time taken from entrance of the plural vehicles into a predetermined traffic signal section that corresponds to a traffic signal until the vehicle passes through the traffic signal section; calculating, by a processor, a frequency distribution of the traffic signal section travel times acquired in the travel time acquisition; determining a first travel time group in which the vehicle does not stop at the traffic signal and a second travel time group in which the vehicle stops at the traffic signal on the basis of the frequency distribution of the traffic signal section travel times calculated in the frequency distribution calculation; and estimating cycle information of the traffic signal on the basis of a difference between the first travel time group and the second travel time group. - View Dependent Claims (6, 7, 8)
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Specification