A Novel Multisensor Traffic State Assessment System Based on Incomplete Data

Table 2

Restoration methods comparation.

Restoration methods	Advantages	Disadvantages
Linear interpolation restoration algorithm	Simple calculation	The error is large and cannot be applied in practice
Historical trend restoration algorithm	Simple and easy	The data is smooth, and it is difficult to reflect the volatility of traffic data
Restoration method based on the spatial correlation of data	Improving the real time, reflecting the real traffic state accurately	Must know other lanes of traffic flow data in advance
Restoration method based on the BP neural network of data	High precision and good effect	Complex calculation and poor real time