Compression Algorithm of Road Traffic Spatial Data Based on LZW Encoding

Table 5

	The optimal training threshold
	The difference data between the real-time data on road segment and the base data on base road segment after threshold processing at moment under mode
	The number of difference data between road segment and base road segment before LZW compression at to time intervals under mode
	The road traffic difference data set of road segments at moment under mode
	The set of difference data on road segment after LZW encoding at moment under mode
	The number after LZW encoding at moment
	The th data on difference data after LZW encoding at time moment under mode