Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2024. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Intersection Safety Performance Function Calibration Factors for Project Planning and Design https://rip.trb.org/View/2292619 Sat, 18 Nov 2023 08:07:06 GMT https://rip.trb.org/View/2292619 Network Screening on Low-Volume Roads: Empirical Validation of a New Proposed Methodology https://rip.trb.org/View/2170310 Fri, 12 May 2023 15:48:53 GMT https://rip.trb.org/View/2170310 Enhancement of Roadside Design Safety Prediction Models for the Highway Safety Manual https://rip.trb.org/View/1854201 Thu, 27 May 2021 19:30:01 GMT https://rip.trb.org/View/1854201 RES2016-27: Highway Safety Manual Safety Performance Functions & Roadway Calibration Factors: Roadway Segments https://rip.trb.org/View/1767387 Thu, 04 Feb 2021 14:40:22 GMT https://rip.trb.org/View/1767387 Calibration Factors for Safety Performance Functions https://rip.trb.org/View/1743195 Mon, 05 Oct 2020 16:31:44 GMT https://rip.trb.org/View/1743195 Proposed AASHTO Highway Safety Manual, Second Edition https://rip.trb.org/View/1739066 Tue, 15 Sep 2020 11:32:52 GMT https://rip.trb.org/View/1739066 Calibration of the Highway Safety Manual Predictive Models for Rural Two-Lane Roads for Vermont https://rip.trb.org/View/1662909 Thu, 31 Oct 2019 16:32:07 GMT https://rip.trb.org/View/1662909 Incorporating Driver Behavior and Characteristics into Safety Prediction Methods https://rip.trb.org/View/1628631 Wed, 05 Jun 2019 13:01:23 GMT https://rip.trb.org/View/1628631 The Effect of Vehicle Mix on Crash Frequency and Crash Severity https://rip.trb.org/View/1628633 Wed, 05 Jun 2019 12:50:56 GMT https://rip.trb.org/View/1628633 HOV/HOT Freeway Crash Prediction Method for the Highway Safety Manual https://rip.trb.org/View/1524151 Tue, 17 Jul 2018 08:53:19 GMT https://rip.trb.org/View/1524151 Updating Safety Performance Functions for Data-Driven Safety Analysis https://rip.trb.org/View/1516177 Tue, 19 Jun 2018 11:33:00 GMT https://rip.trb.org/View/1516177 Developing Safety Performance Functions for Rural Two-Lane Highways that Incorporate Speed Measures https://rip.trb.org/View/1516175 Tue, 19 Jun 2018 10:31:38 GMT https://rip.trb.org/View/1516175 Applying Highway Safety Manual to Georgia https://rip.trb.org/View/1474432 Fri, 14 Jul 2017 13:05:46 GMT https://rip.trb.org/View/1474432 Estimating Effectiveness of Safety Treatments in the Absence of Crash Data https://rip.trb.org/View/1467510 Fri, 19 May 2017 09:39:16 GMT https://rip.trb.org/View/1467510 Compliance Crash Testing of a MASH 2009 Test Level 4 Side Mounted Bridge Rail https://rip.trb.org/View/1440844 Wed, 28 Dec 2016 11:39:58 GMT https://rip.trb.org/View/1440844