Calculation Sheet, SLThe material included on this spreadsheet is made available as a tool and not design guidance. The spreadsheets are to be used for reference purposes only and do not supersede the UDC or AASHTO. The data herein shall be used and relied upon only at the user's sole risk, and the user agrees to indemnify and hold harmless Bexar County or the City of San Antonio, its officials and employees from any liability arising out of the use of the data or information provided. If there are any questions about the appropriateness of this data, please call 210/335-6700.K-Value Determination (Crest Curve, S>L)Design Speed:37Design K-value:30.00Most Restrictive K-value:41TRAFFIC FLOW (if one-way)Average for ReviewEPA EstimateAverageReal WorldValues without roundingCalculate Time to reach design speed from dead stop:7.756sec10.341sec5.171sec-1925.248ft/s210.495ft/s2G2 Downhill Minimum K-value:3736.2613302103Distance traveled to reach design speed from stop:927.22ft1,236.29ft618.14ft54.2666666667ft/sec-2195.248ft/s210.495ft/s2G1 Uphill Minimum K-value:29G2:3.040%28.9605857159Calculate Time to reach design speed after turning corner:4.612sec6.149sec3.074sec22ft/secDistance traveled to reach design speed after turning corner:476.95ft635.93ft317.97ftG1:5.240%Length of Verticle Curve:66.00UH Stopping Sight Distance:250249.993887875DH Stopping Sight Distance:280279.7355011323Average for ReviewEPA EstimateReal WorldTRAFFIC FLOW (if one-way)Calculate Time to reach design speed from dead stop going uphill:7.635sec10.181sec5.090secDistance traveled to reach design speed from stop going uphill:912.81ft1,217.09ft608.54ft5.330ft/s210.661ft/s2-210G2 Uphill Minimum K-value:3230.5175503413Calculate Time to reach design speed after turning corner going uphill:4.540sec6.053sec3.027sec5.330ft/s210.661ft/s2G2:-3.040%Distance traveled to reach design speed after turning corner going uphill:469.54ft626.06ft313.03ft-178G1 Downhill Minimum K-value:4139.0899294035G1:-5.240%Length of Verticle Curve:66.00UH Stopping Sight Distance:260256.6259410827DH Stopping Sight Distance:295290.4411603972Determination of Vertical Curve Elevations(Symmetrical Parabolic)Street Name:Street A (PVI Sta 002+00.00)Plat #:??????Length of Vertical Curve (ft)66.00Elevation of PVCGrade g1 (%)5.240%(This value must less than G1)Grade g2 (%)3.040%Distance From PVC at Which Elevation is to be Calculated (ft)50.00Elevation at Desired Location is2.20Assumptions: Height of driver's eye = 3.5 ft; Height of tail light = 2.0 ft; Brake reaction time = 2.5 s; deceleration rate = 11.2 ft/s2. Two-way traffic is assumed in the determination of the most restrictive K-value.If the calculated K-value is negative, adjust grades where the algebraic difference is less than 1.5%Street TypeDesign SpeedLocal A30MPHLocal B35MPHCollector40MPHSecondary Arterial +45MPHTurning Movement20MPHMarginal Access30MPHAlley20MPH

Level GroundThe material included on this spreadsheet is made available as a tool and not design guidance. The spreadsheets are to be used for reference purposes only and do not supersede the UDC or AASHTO. The data herein shall be used and relied upon only at the user's sole risk, and the user agrees to indemnify and hold harmless Bexar County or the City of San Antonio, its officials and employees from any liability arising out of the use of the data or information provided. If there are any questions about the appropriateness of this data, please call 210/335-6700.K Value Determination Table (Crest Curve, S