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AASHTOWare
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AASHTOWare
Data, Hardware and Software Requirements

Data Requirements

The AASHTOWare Safety Analyst software tools require a linked database of roadway characteristics, traffic volume, and crash data at the site level. Many of the required data elements are readily available to highway agencies. However, some effort to assemble and format the data will be needed. AASHTOWare Safety Analyst includes a data management tool to help users import and manage their data. While many additional data elements are desirable and may be evaluated, the minimum set of data elements required to use AASHTOWare Safety Analyst are crash and traffic data and either roadway segment, intersection, or ramp data.

  1. Crash Data: crash location, date, collision type, severity, relationship to junction, maneuvers by involved vehicles (straight ahead/left turn/right turn/etc.)
  2. Roadway Segment Characteristics Data: segment number, segment location (mapped to crash locations), segment length (mi), area type (rural/urban), number of through traffic lanes (by direction of travel), median type (divided/undivided), access control (freeway/ non-freeway), two-way vs. one-way operation, traffic volume (AADT)
  3. Intersection Characteristics Data: intersection number, intersection location (mapped to crash locations), area type (rural/urban), number of intersection legs, type of intersection traffic control, major-road traffic volume (AADT), minor-road traffic volume (AADT)
  4. Ramp Characteristics Data: ramp number, ramp location (in a form that is linkable to crash locations), area type (rural/urban), ramp length (mi), ramp type (on-ramp/off-ramp/freeway-to-freeway ramp), ramp configuration (diamond/loop/directional), ramp traffic volume (AADT)

Hardware and Software Requirements

Minimum Configuration (Client Workstation Only)

Hardware Requirements​1

Machine​

x86 (32-bit)​

​x86-64 (64-bit)

​CPU

​Operating system dependent

​Operating system dependent

​Memory

​1 GB

​2 GB

Video ​

​1024 x 768, 16-bit color

​1024 x 768, 16-bit color

​Mouse

​Microsoft or compatible

​Microsoft or compatible

​Hard Disk

200 MB (no local data set)

​200 MB (no local data set)

 

​Software Requirements2

Operating System​

​Microsoft Windows XP (32-bit or 64-bit)
Windows Vista (32-bit or 64-bit) 
Windows 7 (32-bit or 64-bit)
A Linux version of Safety Analyst is available on request.

​Browser

​HTML browser, PDF viewer or RTF viewer required; CSV-capable spreadsheet program recommended.

 Recommended Configuration (Standalone or Data Management Workstation)

​Hardware Requirements1

Machine​

​x86 (32-bit)

​x86-64 (64-bit)

​CPU

​Operating system dependent

​Operating system dependent

​Memory

​2 GB

​8 GB

​Video

​1280 x 1024, 32-bit color

​1280 x 1024, 32-bit color

​Mouse

​Microsoft or compatible

​Microsoft or compatible

​Hard Disk

​20 GB3

​20 GB3

  

 

​Software Requirements2

​Operating System

​Microsoft Windows XP (32-bit or 64-bit)
Windows Vista (32-bit or 64-bit)
Windows 7 (32-bit or 64-bit)
A Linux version of Safety Analyst is available on request.

​Browser

​HTML browser, PDF viewer or RTF viewer required; CSV-capable spreadsheet program recommended.

 

 Database Server (optional, recommended for enterprise deployments)

​Hardware Requirements

​Any hardware, operating system and a SQL-compliant database management system (DBMS) that supports the Java Database Connectivity (JDBC) API. Fully Tested DBMS include Oracle, Microsoft SQL Server, and Apache Derby. Minimal testing has been conducted on MySQL and Sybase DBMS.​

​Hard Disk

​20 GB3

​Network

​100 Mbit/s minimum, 1 Gbit/s recommended.

 

Notes:

  1. CPU and memory requirements vary by operating system. For Microsoft operating systems, the minimum requirements recommended for the selected operating system will be sufficient to support Safety Analyst in a minimum (Client-only) configuration.

    Safety Analyst is limited to 1 GB on 32-bit systems. For large data sets (in excess of 70,000 sites or 1 million crash records), a 64-bit operating system with 2 GB or more of memory may be required to perform data management, or to perform a single network screening analysis on all sites in the data set.

  2. Safety Analyst is implemented in the Java programming language. It will run on any platform with a Version 6 Java runtime environment (JRE). The Version 6 32-bit JRE is packaged with the Safety Analyst installers. A separate Version 6 64-bit JRE is also available.

  3. Data storage requirements depend on the size of the inventory, traffic and crash data. For example, a near-production data set of 25,000 roadways segments, 46,000 intersections, 1.4 million crashes and 9 years of traffic data requires less than 1.5 GB of disk space for a local (Apache Derby) database.