Estimation of Costs and Durations of Construction of Urban Roads Using ANN and SVM

Table 4

Inputs into models.

Number	Description of input data	Data type	Unit of measurement	Min	Max	Mean value
Input 1	Amount of crushed stone	Numerical	m^3	0,00	16,070.00	1,694.62
Input 2	Amount of curbs	Numerical	m^1	0,00	14,300.00	1,975.07
Input 3	Amount of asphalt base layer	Numerical	t	0,00	31,569.00	1,119.61
Input 4	Amount of asphalt surface layer	Numerical	t	0,00	11,046.00	505.85
Input 5	Amount concrete prefabricated elements	Numerical	m^2	0,00	20,000.00	2,824.85
	Percentage share of wok positions
Input 6	Preparation works	Numerical	%	0,00	100.00	43.18
Input 7	Earthworks	Numerical	%	0,00	100.00	48.92
Input 8	Drainage works	Numerical	%	0,00	93.33	16.63
Input 9	Traffic signalisation works	Numerical	%	0,00	100.00	28.66
Input 10	Other works	Numerical	%	0,00	100.00	8.59
Input 11	Works realisation zone	Discrete	-	1	2	-
Input 12	Project category (values of up to and over 40,000,000)	Discrete	-	1	2	-