Table 3 Waste transportation cost (in dollars)

\(TR_{11k}^{\pm }\)

[−0.0161X + 15.08,

[−0.0181X + 16.02,

[−0.0195X + 17.65,

−0.0121X + 19.50]

−0.0139X + 21.30]

−0.0146X + 23.45]

\(TR_{12k}^{\pm }\)

[−0.0142X + 12.63,

[−0.0146X + 13.92,

[−0.0169X + 15.31,

−0.0105X + 16.89]

−0.0116X + 18.58]

−0.0127X + 20.35]

\(TR_{13k}^{\pm }\)

[−0.0170X + 15.30,

[−0.0188X + 16.84,

[−0.0209X + 18.45,

−0.0130X + 20.50]

−0.0142X + 22.54]

−0.0158X + 24.70]

\(TR_{21k}^{\pm }\)

[−0.0130X + 11.55,

[−0.0144X + 12.75,

[−0.0155X + 14.01,

−0.0098X + 15.40]

−0.0109X + 16.97]

−0.0118X + 18.66]

\(TR_{22k}^{\pm }\)

[−0.0136X + 12.17,

[−0.0149X + 13.40,

[−0.0164X + 14.75,

−0.0103X + 16.15]

−0.0113X + 17.75]

−0.0124X + 19.55]

\(TR_{23k}^{\pm }\)

[−0.0120X + 10.05,

[−0.0130X + 11.65,

[−0.0143X + 12.83,

−0.0090X + 14.02]

−0.0098X + 15.52]

−0.0108X + 17.06]