Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Short-Term Prediction of Signal Cycle in Actuated-Controlled Corridor
  Using Sparse Time Series Models   Traffic signals as part of intelligent transportation systems can play a
significant role toward making cities smart. Conventionally, most traffic
lights are designed with fixed-time control, which induces a lot of slack time
(unused green time). Actuated traffic lights control traffic flow in real time
and are more responsive to the variation of traffic demands. For an isolated
signal, a family of time series models such as autoregressive integrated moving
average (ARIMA) models can be beneficial for predicting the next cycle length.
However, when there are multiple signals placed along a corridor with different
spacing and configurations, the cycle length variation of such signals is not
just related to each signal's values, but it is also affected by the platoon of
vehicles coming from neighboring intersections. In this paper, a multivariate
time series model is developed to analyze the behavior of signal cycle lengths
of multiple intersections placed along a corridor in a fully actuated setup.
Five signalized intersections have been modeled along a corridor, with
different spacing among them, together with multiple levels of traffic demand.
To tackle the high-dimensional nature of the problem, penalized least squares
method are utilized in the estimation procedure to output sparse models. Two
proposed sparse time series methods captured the signal data reasonably well,
and outperformed the conventional vector autoregressive (VAR) model - in some
cases up to 17% - as well as being more powerful than univariate models such as
ARIMA.

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The categories of this paper are: math
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
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The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: cmp-lg
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an