905.3 Transportation Impact Analysis - Revision history

Hoskir: /* Table 905.3.5.3.1.4, Synchro/SimTraffic Simulation Settings: Typical User-Adjusted Attributes(When Field Data is Not Available) */ updated per RR3734

2023-07-26T14:26:37Z

Table 905.3.5.3.1.4, Synchro/SimTraffic Simulation Settings: Typical User-Adjusted Attributes(When Field Data is Not Available): updated per RR3734

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	:2. Coding Error Check – Click on “Options” and then “Coding Error Check” to identify all errors and warnings by location (e.g., node number and traffic movement) and error type. Try to address all errors and warnings if possible, which may require making coding revisions in Synchro.		:2. Coding Error Check – Click on “Options” and then “Coding Error Check” to identify all errors and warnings by location (e.g., node number and traffic movement) and error type. Try to address all errors and warnings if possible, which may require making coding revisions in Synchro.
	:3. Establish SimTraffic calibration parameters using the following 4 tables under the “Calibration” section:		:3. Establish SimTraffic calibration parameters using the following 4 tables under the “Calibration” section:
	:::a. Intervals & Volumes – Networks should be seeded for a period long enough to traverse the two most distant points of the network, including stops prior to recording, with a minimum of 15 minutes. The seeding time should also be longer than the maximum cycle length used in the network. The recording interval duration used in SimTraffic should be 60 minutes unless otherwise justified. It is recommended to break the recording duration into 15-minute intervals ~~with one of~~ the ~~middle intervals set to~~ “PHF Adjust” ~~of “Yes~~.~~” The other intervals should be set~~ to ~~“AntiPHF Adjust” of “Yes~~.”		:::a. Intervals & Volumes – Networks should be seeded for a period long enough to traverse the two most distant points of the network, including stops prior to recording, with a minimum of 15 minutes. The seeding time should also be longer than the maximum cycle length used in the network. The recording interval duration used in SimTraffic should be 60 minutes unless otherwise justified. It is recommended to break the recording duration into 15-minute intervals to utilize the “PHF Adjust” and “AntiPHF Adjust” features. It is recommended to verify SimTraffic throughput reports against Synchro hourly volumes.
	:::b. Drivers – '''''Start with default values.''''' When vehicles are created, they are randomly assigned a driver type between 1 and 10. Each driver type represents 10% of the driving population with driver type 1 being the most conservative and driver type 10 being the most aggressive.		:::b. Drivers – '''''Start with default values.''''' When vehicles are created, they are randomly assigned a driver type between 1 and 10. Each driver type represents 10% of the driving population with driver type 1 being the most conservative and driver type 10 being the most aggressive.
	:::c. Vehicles – '''''Start with default values.''''' This page can be used to view and edit the vehicle characteristics (refer to Figure 905.3.5.3.1.6). Note that the total proportion of heavy vehicles (among all vehicles) is determined in Synchro and that the vehicle occurrence percentages on this page are among the total number of heavy vehicles established already. To simulate a higher proportion of certain heavy vehicle types on known freight corridors, the proportions of the “Truck SU,” “SemiTrk1,” “SemiTrk2,” “Truck DB,” and/or “Bus” could be adjusted higher (while lowering another, lesser occurring heavy vehicle type).		:::c. Vehicles – '''''Start with default values.''''' This page can be used to view and edit the vehicle characteristics (refer to Figure 905.3.5.3.1.6). Note that the total proportion of heavy vehicles (among all vehicles) is determined in Synchro and that the vehicle occurrence percentages on this page are among the total number of heavy vehicles established already. To simulate a higher proportion of certain heavy vehicle types on known freight corridors, the proportions of the “Truck SU,” “SemiTrk1,” “SemiTrk2,” “Truck DB,” and/or “Bus” could be adjusted higher (while lowering another, lesser occurring heavy vehicle type).

Hoskir: /* 905.3.7.3 TIS Report Template */ updated TIS Report Template per RR 3667

2023-03-16T14:54:13Z

905.3.7.3 TIS Report Template: updated TIS Report Template per RR 3667

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	==905.3.7.3 TIS Report Template==		==905.3.7.3 TIS Report Template==

	A [[media:905.3.7.~~3 TIS Report a~~.docx\|Traffic Impact Study (TIS) Report]] is meant to summarize the procedure and findings of traffic impact studies and to recommend adjustments to the transportation network that will be needed to handle the traffic generated by the construction of new developments. This template is meant to aid consultants and other parties submitting work to MoDOT in their production of TIS Reports.		A [[media:905.3.7.3_MoDOT_Traffic_Impact_Study_Report_Template_06_17_2020_FINAL.docx\|Traffic Impact Study (TIS) Report]] is meant to summarize the procedure and findings of traffic impact studies and to recommend adjustments to the transportation network that will be needed to handle the traffic generated by the construction of new developments. This template is meant to aid consultants and other parties submitting work to MoDOT in their production of TIS Reports.

	==905.3.7.4 Traffic Safety and Operations Report Template==		==905.3.7.4 Traffic Safety and Operations Report Template==

Hoskir: /* 905.3.5.5 Model Templates */ updated links to generic project file templates

2023-01-19T16:00:15Z

905.3.5.5 Model Templates: updated links to generic project file templates

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	==905.3.5.5 Model Templates==		==905.3.5.5 Model Templates==
	Generic project file templates are provided for the software tools listed below. These file templates are accessible by MoDOT personnel and are a reference for users, which accompany the guidance in EPG 905.3 Transportation Impact Analysis. These files may be shared with external customers upon request.		Generic project file templates are provided for the software tools listed below. These file templates are accessible by MoDOT personnel and are a reference for users, which accompany the guidance in EPG 905.3 Transportation Impact Analysis. These files may be shared with external customers upon request.
	:• [~~http~~://sp/sites/ts/~~safety/Shared~~%~~20Documents~~/Forms/AllItems.aspx?~~RootFolder~~=%~~2fsites~~%~~2fts~~%~~2fsafety~~%~~2fShared~~%20Documents%~~2fStudies~~%~~2fTransportation~~%20Impact%20Study%20Guidance%~~2fBase~~%20Model%20Files&~~FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View~~=%~~7bCCE97DB0%2dE711%2d4B87~~%~~2dA5DC~~%~~2dAF66786C3A4F~~%7d HCS]		:• [https://modotgov.sharepoint.com/sites/ts/Safety%20Engineering%20%20Data/Forms/AllItems.aspx?id=%2Fsites%2Fts%2FSafety%20Engineering%20%20Data%2FShared%20Documents%2FStudies%2FTransportation%20Impact%20Study%20Guidance%2FBase%20Model%20Files&viewid=ead934a0%2D4e9f%2D471b%2Db195%2D1e5c453a37bd HCS]
	:• [~~http~~://sp/sites/ts/~~safety/Shared~~%~~20Documents~~/Forms/AllItems.aspx?~~RootFolder~~=%~~2fsites~~%~~2fts~~%~~2fsafety~~%~~2fShared~~%20Documents%~~2fStudies~~%~~2fTransportation~~%20Impact%20Study%20Guidance%~~2fBase~~%20Model%20Files&~~FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View~~=%~~7bCCE97DB0%2dE711%2d4B87~~%~~2dA5DC~~%~~2dAF66786C3A4F~~%7d SIDRA]		:• [https://modotgov.sharepoint.com/sites/ts/Safety%20Engineering%20%20Data/Forms/AllItems.aspx?id=%2Fsites%2Fts%2FSafety%20Engineering%20%20Data%2FShared%20Documents%2FStudies%2FTransportation%20Impact%20Study%20Guidance%2FBase%20Model%20Files&viewid=ead934a0%2D4e9f%2D471b%2Db195%2D1e5c453a37bd SIDRA]
	:• [~~http~~://sp/sites/ts/~~safety/Shared~~%~~20Documents~~/Forms/AllItems.aspx?~~RootFolder~~=%~~2fsites~~%~~2fts~~%~~2fsafety~~%~~2fShared~~%20Documents%~~2fStudies~~%~~2fTransportation~~%20Impact%20Study%20Guidance%~~2fBase~~%20Model%20Files&~~FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View~~=%~~7bCCE97DB0%2dE711%2d4B87~~%~~2dA5DC~~%~~2dAF66786C3A4F~~%7d Synchro/SimTraffic]		:• [https://modotgov.sharepoint.com/sites/ts/Safety%20Engineering%20%20Data/Forms/AllItems.aspx?id=%2Fsites%2Fts%2FSafety%20Engineering%20%20Data%2FShared%20Documents%2FStudies%2FTransportation%20Impact%20Study%20Guidance%2FBase%20Model%20Files&viewid=ead934a0%2D4e9f%2D471b%2Db195%2D1e5c453a37bd Synchro/SimTraffic]
	:• [~~http~~://sp/sites/ts/~~safety/Shared~~%~~20Documents~~/Forms/AllItems.aspx?~~RootFolder~~=%~~2fsites~~%~~2fts~~%~~2fsafety~~%~~2fShared~~%20Documents%~~2fStudies~~%~~2fTransportation~~%20Impact%20Study%20Guidance%~~2fBase~~%20Model%20Files&~~FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View~~=%~~7bCCE97DB0%2dE711%2d4B87~~%~~2dA5DC~~%~~2dAF66786C3A4F~~%7d VISSIM]		:• [https://modotgov.sharepoint.com/sites/ts/Safety%20Engineering%20%20Data/Forms/AllItems.aspx?id=%2Fsites%2Fts%2FSafety%20Engineering%20%20Data%2FShared%20Documents%2FStudies%2FTransportation%20Impact%20Study%20Guidance%2FBase%20Model%20Files&viewid=ead934a0%2D4e9f%2D471b%2Db195%2D1e5c453a37bd VISSIM]

	==905.3.5.6 Review Checklists==		==905.3.5.6 Review Checklists==

Smithk: Per TS, replaced "marked-up" version of template with a "clean" version

2022-01-28T20:00:28Z

Per TS, replaced "marked-up" version of template with a "clean" version

← Older revision		Revision as of 15:00, 28 January 2022
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	==905.3.7.4 Traffic Safety and Operations Report Template==		==905.3.7.4 Traffic Safety and Operations Report Template==

	The purpose of a [[media:905.3.7.~~4 TS~~&~~O Report~~.docx\|Traffic Safety and Operations (TS&O) Report]] is to analyze the current performance of a roadway, the future performance of the roadway without improvements, and the future performance of the roadway after improvements have been made. If there are several design alternatives being considered, the TS&O study will analyze the performance of each alternative under future conditions and use the results of this analysis to recommend the most attractive design alternative. This template is meant to aid consultants and other parties submitting work to MoDOT in their production of TS&O reports.		The purpose of a [[media:905.3.7.4_TS&O_Report_2022.docx\|Traffic Safety and Operations (TS&O) Report]] is to analyze the current performance of a roadway, the future performance of the roadway without improvements, and the future performance of the roadway after improvements have been made. If there are several design alternatives being considered, the TS&O study will analyze the performance of each alternative under future conditions and use the results of this analysis to recommend the most attractive design alternative. This template is meant to aid consultants and other parties submitting work to MoDOT in their production of TS&O reports.

Smithk: /* 905.3.6.1.4 Analysis */

2021-11-16T16:29:00Z

905.3.6.1.4 Analysis

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	::Where:		::Where:
	:::::<math>K = probability\ factor = 1.645\ (95%\ confidence\ level)</math>		:::::<math>K = probability\ factor = 1.645\ (95%\ confidence\ level)</math>
	:::::<math>Exposure = AADT * \frac{365\ Days}{Year} * \frac{Number\ of\ Years}{1} * \frac{~~Segnment~~\ Length\ (miles)}{1}</math>		:::::<math>Exposure = AADT * \frac{365\ Days}{Year} * \frac{Number\ of\ Years}{1} * \frac{Segment\ Length\ (miles)}{1}</math>

	'''Crash Statistics'''		'''Crash Statistics'''

Smithk: /* 905.3.6.1.4 Analysis */

2021-11-16T16:27:44Z

905.3.6.1.4 Analysis

← Older revision		Revision as of 11:27, 16 November 2021
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	::Where:		::Where:
	:::::<math>Exposure = AADT * \frac{365\ Days}{Year} * \frac{Number\ of\ Years}{1} * \frac{~~Segnment~~\ Length\ (miles)}{1}</math>		:::::<math>Exposure = AADT * \frac{365\ Days}{Year} * \frac{Number\ of\ Years}{1} * \frac{Segment\ Length\ (miles)}{1}</math>

	'''Critical Crash Rate'''		'''Critical Crash Rate'''

Smithk: Per TS, this new article is largely expected to be utilized by contractors. It is a compilation of best practices for Transportation Impact Analysis (TIA), a study that evaluates the potential adverse effects of proposed projects on surrounding and supporting transportation infrastructure and services.

2021-11-12T16:23:17Z

Per TS, this new article is largely expected to be utilized by contractors. It is a compilation of best practices for Transportation Impact Analysis (TIA), a study that evaluates the potential adverse effects of proposed projects on surrounding and supporting transportation infrastructure and services.

Show changes