GTIS Travel Time Report #2
Statistics for Agency:IL-TESTTSC Route:I-94

   Year        Month
Year: 2023 Month: January
Direction Segment Start Segment End
Total Length (mi)
  • Total length of all segments for the route listed (may include overlapping segments)
Total Travel Time, GTIS (min)
  • Average total travel time for all segments as reported by the Gateway Traveler Information System (GTIS)
Total Travel Time, NPMRDS (min)
  • Average total travel time for all segments as reported by the National Performance Management Research Data Set (NPMRDS)
Similarity 1 (%)
  • Based on Normalized Root Mean Square Error (NRMSE)
  • Shows how similar the values are / error in measurements
Similarity 2 (%)
  • Based on Mean Absolute Percentage Error (MAPE)
  • Shows how similar the values are / error in measurements
  • Deviation between data points in terms of percentage, effected largely by overforecasts
Abnormality (%)
  • Based on data lying outside of three standard deviations from the mean versus what would normally be expected
  • Affected by GTIS and NPMRDS evenly
Association (%)
  • Based on correlation coefficient between datasets
  • Can you predict one value based on the other
Inequality (%)
  • Based on Theil statistics for the data
  • Suite of four statistics commonly used to compare travel time data
  • Measuring covariance, variance, and bias
Bias (%)
  • Based on Theil bias statistic only
Omission (%)
  • Based on data availability
  • Large amounts of unavailable data results in lower score
Overall (%)
  • Weighted average of the seven intermediate statistics
Change From Last Month(%)
  • Percent change in overall score from previous month
EBDeerfield RdWilson Ave16.4019.2515.7474.2176.6157.1378.2171.1725.01100.0070.86-1.30
EBLake Cook RdWillow Rd3.914.813.4757.0460.681.0060.9962.7818.0399.7453.68-5.47
EBDeerfield RdWillow Rd6.097.285.6667.6470.961.0056.4165.1021.6699.9159.06-3.43
EBDempster StMontrose Ave6.347.626.2774.6675.4253.2793.7969.9828.26100.0072.05-0.66
EBLake Cook Rd (via Edens)I-290 / Circle (via Kennedy)22.6829.1325.5582.7183.5670.6396.5472.5034.15100.0078.95-1.88
EBDeerfield RdDempster St10.5612.139.9674.5477.8113.4157.5168.4926.90100.0064.72-5.49
EBI-290/Circle (via Dan Ryan)I-80 (via Bishop Ford)22.8726.7023.9983.2185.0049.4295.7969.5054.66100.0078.99-4.64
EBLake Cook RdMontrose Ave14.4816.8913.7974.1876.2760.9981.9470.8124.34100.0071.42-0.77
EBLake Cook RdDempster St8.339.767.7070.0772.6517.2759.7766.8719.51100.0062.02-5.95
EBDeerfield RdTouhy Ave13.0514.6812.3877.5880.8922.4158.5771.0831.07100.0067.93-6.57
EBLake Cook RdI-9014.4814.5518.5060.7083.7260.2887.2649.2470.51100.0072.830.51
EBDan Ryan / 95th St130th St5.646.996.0069.2579.1211.4866.3182.5871.23100.0070.25-1.47
EBLake Cook RdTouhy Ave10.8112.2610.1275.2778.2321.1261.2370.0226.29100.0066.24-7.10
EBDan Ryan / 95th StI-80 (Kingery Expy)11.0014.4610.6259.1561.9828.2083.2867.4721.44100.0060.320.63
EBDan Ryan / 95th St154th St8.8212.159.1060.2864.4919.8483.1368.4928.47100.0061.19-0.93
EBI-290/Circle95th St (via Locals)11.1212.9811.4184.3085.1315.3499.1271.4823.09100.0073.26-0.91
EB29th St65th St (via Locals)4.476.944.4743.4338.3344.2797.9760.855.23100.0051.27-1.75
EBDan Ryan / 95th StStony Island Ext2.303.732.4923.8743.963.1252.8865.6857.46100.0044.871.44
EBOverall193.35232.34197.2167.3471.9330.5676.1568.0132.6399.9865.55-2.25
WB95th St29th St (via Locals)N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
WBMontrose AveTouhy Ave3.854.233.5075.3676.5948.1384.7671.6929.22100.0071.37-4.69
WBI-80Dan Ryan11.7415.9411.0853.6653.9665.4985.9163.8910.42100.0059.481.55
WB95th StI-290/Circle (via Locals)11.0712.0510.3179.2378.9277.7194.2864.4733.68100.0076.55-5.25
WBI-90Dempster St5.726.825.3168.8670.8550.0681.1267.2417.10100.0066.48-0.98
WBI-80130th St6.157.454.9646.5946.0262.2078.7962.1511.45100.0054.611.05
WBI-80 (via Bishop Ford)I-290/Circle (via Dan Ryan)22.8729.1122.5669.1468.8575.7893.2164.2411.46100.0068.97-0.09
WBI-80Stony Island Ext9.0711.127.8055.0755.0367.3579.5563.019.78100.0059.49-1.39
WBMontrose AveWillow Rd10.8811.3310.2183.7387.7341.0671.8980.7953.83100.0077.62-4.23
WBI-290 / Circle (via Kennedy)Lake Cook Rd (via Edens)22.8427.0424.2885.4886.6159.7095.3772.5638.83100.0079.67-3.90
WBMontrose AveDeerfield Rd15.3518.2614.3570.4072.505.6968.7865.4515.39100.0061.26-3.14
WBMontrose AveLake Cook Rd14.3515.6913.4179.5382.796.3369.1070.2431.43100.0068.29-3.17
WBMontrose AveDempster St6.036.625.5678.1480.3151.3483.0071.2824.92100.0072.67-1.91
WBI-80154th St2.924.292.101.001.0061.6383.6156.506.16100.0031.295.01
WB65th St29th St (via Locals)4.545.743.7946.8746.8462.8588.4661.776.24100.0055.36-5.27
WBOverall147.37175.69139.2263.7964.8652.5282.7066.8121.42100.0064.51-2.25
Overall340.73408.03336.4465.7968.8440.1779.0267.4827.7399.9965.09-2.25
Cells are highlighted red when they decrease by more than -7.17 percentage points which represents the 5th percentile of monthly changes at this aggregation from 2017-2025.
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