The LTPP program was initiated in 1987 to satisfy a wide range of pavement information needs. Over the years, the 

program has accumulated a vast repository of research quality data, extensive documentation, and related tools, 

which compose LTPP’s comprehensive IMS. The LTPP IMS is comprised of two major components, the Pavement 

Performance Database (PPDB) and the Ancillary Information Management System (AIMS). The PPDB, which aims to 

find out how and why pavements perform the way they do, contains comprehensive data collected throughout the 

life of the experimental pavement sections. AIMS is a central electronic repository that contains information such as 

raw data, images, reference materials, resource documents, and other facts that support and extend the data stored 

in the PPDB. In addition, the LTPP program maintains a comprehensive reference library with more than 1,200 

research reports, tech briefs, and program documents in electronic format that explain how the data are collected, 

processed, and stored. The LTPP IMS is the premier product of the LTPP program and will be used for research, 

pavement design, and product development for decades to come.

The data and information in the LTPP IMS were made available via the Web through the data portal system, LTPP 

InfoPave, in January 2014 at the Transportation Research Board (TRB) 93rd Annual Meeting. An enhanced InfoPave is 

planned to be released in January 2016 at the TRB 95th Annual Meeting. InfoPave is the public gateway to access 

data and other information about the LTPP program. By using the latest methodologies in computer technology, this 

Web-centric interface is designed to improve access to LTPP data. In addition to providing access to LTPP data, the 

interface also provides information, education, and tools to maximize the use of available data.

The Web-centric interface for the LTPP Information Management 

System (IMS) provides a powerful and flexible tool that enables users 

of all levels—professionals, researchers, and students—to view, 

visualize, extract, and employ LTPP data.

LTPP InfoPave includes creative tools for data viewing, identification, and selection that helps users create their own 

personalized data sets, summary reports, queries, and much more. It gives users the ability to share data selections, 

views, or queries with other users, which can exponentially improve LTPP data usage across geographic boundaries 

and time zones. With LTPP InfoPave, LTPP data are at people’s fingertips, allowing them to obtain the right data 

efficiently and extract practical information regarding pavement engineering and management.

infopave.fhwa.dot.gov

Knowledge into Action...

Performance Data for Pavement Innovation

For more information about LTPP InfoPave or the LTPP program, 

contact the LTPP Customer Support Service Center at

202-493-3035 or ltppinfo@dot.gov.

LTPP InfoPave can be accessed at https://infopave.fhwa.dot.gov.

FHWA-HRT-16-027

HRDI-30/01-16(1M)E

Search Map Data Analysis Visualization Tools Library Non-LTPP
Find LTPP Sections of Interest

Through a variety of advanced filters, you can narrow 

your search to the test sections that correspond to 

your interest. Users can now save the selected filter 

criteria for future reuse and automatic reapplication 

instead of selecting and applying each criterion 

individually.

Find and Select LTPP Data

The Data Selector feature provides an organized tree 

structure to search and select pertinent data tables 

and fields. Users can now subset the data of their 

choice by selecting a date range.

The Long-Term Pavement Performance (LTPP) program’s data portal—

LTPP InfoPaveTM—facilitates access and analysis of its data through a 

variety of online data selection and visualization tools.

Search LTPP Data

The Search feature allows you to look for sections, 

data, or documents. In addition, you can filter the 

search results according to your needs. A feedback 

form has been developed to collect information on 

user-selected search term(s), the corresponding 

results, and the actual type of information sought by 

users.

State/Province Summary Report

The State/Province Summary Report provides an 

overview of key structure, climate, traffic, and 

performance data corresponding to LTPP sections in 

every State or Province. For a more in depth review of 

section level data, you can use the Section Summary 

Report. Both of these reports could either be printed 

or exported in Microsoft Excel® file format.

InfoPave Help

The Help hub includes various features including 

announcements, how-to videos, sample applications, 

presentations, and frequently asked questions to 

assist InfoPave users. In addition, an interactive help 

tour and text-to-speech feature has been developed 

for a step-by-step guide to several InfoPave features. 

Furthermore, sample structured query language 

(SQL) codes have been provided to help users with 

the SQL Data Export feature. 

WesTrack Data

The Non-LTPP hub provides access to data sources 

other than LTPP that can be used in pavement 

engineering and research. The Canadian LTPP 

(C-LTPP) database and the WesTrack accelerated 

pavement testing data are featured in this hub.

Map Data Geographically

The Map feature presents section locations 

geographically. The map provides the ability to zoom 

in and out, pan, and filter section results using userselected criteria. Users can visualize the availability of 

data on the map, and download data in Keyhole 

Markup Language (KML) format.

Modern-Era Retrospective Analysis for Research and 

Applications (MERRA) climate data from the National 

Aeronautics and Space Administration (NASA) is 

available in the form of host column description 

(HCD) files that can be used as input to AASHTOWare 

Pavement Mechanistic-Empirical (ME) Design 

Software. 

Data Analysis

The Analysis hub provides multiple features for 

preliminary data analysis. The Analytical Reports 

feature allows the user to select specific data 

attributes to be visualized on various types of charts. 

These customized graphs include heat maps, tree 

maps, time series, scatter plots, and bar charts. The 

Correlation Analysis feature provides a parallel 

coordinates plot, where the user can select multiple 

attributes to visualize their data.

MERRA Climate Data for MEPDG

Analytical Reports

State/Province Summary Report

Data Visualization

The Data Visualization feature provides tools to 

analyze the data visually. These include the Section 

Timeline, which provides the event history of each 

LTPP section; the Pavement Cross-Section Viewer, 

which offers a graphical representation of pavement 

structural layers; and the Manual Distress Survey 

Viewer, which displays the distress maps of each test 

section. Map Data Geographically Pavement Cross-Section Viewer

WesTrack

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