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Deprecated: WPDataTables\Vendor\DI\autowire(): Implicitly marking parameter $className as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\functions.php on line 48

Deprecated: WPDataTables\Vendor\DI\ContainerBuilder::writeProxiesToFile(): Implicitly marking parameter $proxyDirectory as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\ContainerBuilder.php on line 283

Deprecated: WPDataTables\Vendor\DI\Definition\Source\ReflectionBasedAutowiring::autowire(): Implicitly marking parameter $definition as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Definition\Source\ReflectionBasedAutowiring.php on line 19

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Deprecated: WPDataTables\Vendor\DI\Definition\Source\DefinitionNormalizer::normalizeRootDefinition(): Implicitly marking parameter $wildcardsReplacements as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Definition\Source\DefinitionNormalizer.php on line 46

Deprecated: WPDataTables\Vendor\DI\Proxy\ProxyFactory::__construct(): Implicitly marking parameter $proxyDirectory as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Proxy\ProxyFactory.php on line 43

Deprecated: WPDataTables\Vendor\DI\Container::__construct(): Implicitly marking parameter $definitionSource as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Container.php on line 87

Deprecated: WPDataTables\Vendor\DI\Container::__construct(): Implicitly marking parameter $proxyFactory as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Container.php on line 87

Deprecated: WPDataTables\Vendor\DI\Container::__construct(): Implicitly marking parameter $wrapperContainer as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Container.php on line 87

Deprecated: WPDataTables\Vendor\DI\Definition\ObjectDefinition::__construct(): Implicitly marking parameter $className as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Definition\ObjectDefinition.php on line 72

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Deprecated: WPDataTables\Vendor\DI\Definition\ObjectDefinition::setLazy(): Implicitly marking parameter $lazy as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Definition\ObjectDefinition.php on line 186

Deprecated: WPDataTables\Vendor\DI\Definition\Resolver\ObjectCreator::setPrivatePropertyValue(): Implicitly marking parameter $className as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\scope-vendor\php-di\php-di\src\Definition\Resolver\ObjectCreator.php on line 212

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Deprecated: WDTIntegration\Webhooks\WebhookManagerService::__construct(): Implicitly marking parameter $repository as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\tiers\pro\webhooks\Services\WebhookManagerService.php on line 24

Deprecated: WDTIntegration\Webhooks\WebhookDispatcherService::__construct(): Implicitly marking parameter $repository as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\tiers\pro\webhooks\Services\WebhookDispatcherService.php on line 30

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Deprecated: WDTIntegration\Webhooks\WebhookDispatchHooks::__construct(): Implicitly marking parameter $dispatcher as nullable is deprecated, the explicit nullable type must be used instead in C:\inetpub\sites\SafeDesign\wp-content\plugins\wpdatatables\backend\tiers\pro\webhooks\Hooks\WebhookDispatchHooks.php on line 15
Home | Safe Design

Designing for Safe Mobility

A Holistic, User-Centric Approach to Roadway Design

KYTC’s Designing for Safe Mobility website houses critical knowledge roadway designers need to plan and design facilities that deliver on the promise of providing safe and efficient mobility for all users. Along with short primers on topics that inform contemporary design best practices, users can search content found in Human Factors Guidelines for Road Systems (NCRHP Report 600). The site will be refreshed often so it remains a trusted, up-do-date resource for designing safe, context-adapted facilities.

Road Design Primers
Designing for Safe Mobility Checklist

Human Factors Guidelines Database

Clear Filters

Complete Streets

Home

Design Primers

Safe System Approach

Road Classification

Human Factors

6.2 Task Analysis of Curve Driving

Safe Mobility Checklist

6.4 Influence of Perceptual Factors on Curve Driving

6.6 Speed Selection on Horizontal Curves

6.8 Countermeasures for Improving Steering and Vehicle Control Through Curves

6.10 Countermeasures to Improve Pavement Delineation

6.12 Signs on Horizontal Curves

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HFG Database

5.2 Key Components of Sight Distance

5.4 Determining Stopping Sight Distance

5.6 Determining Intersection Sight Distance

5.8 Determining When to Use Decision Sight Distance

5.10 Determining Passing Sight Distance

5.12 Influence of Speed on Sight Distance

7.2 Design Considerations for Turnouts and Grades

7.4 Geometric and Signing Consideration to Support the Effective Use of Truck Escape Ramps

7.6 Preview Sight Distance and Grade Perception at Vertical Curves

8.2 Task Analysis of Lane Changes on Tangent Sections

8.4 Overview of Driver Alertness on Long Tangent Sections

9.2 Perceptual and Physical Elements to Support Rural-Urban Transitions

16.6 Rumble Strips

10.4 Factors Affecting Acceptable Gap Distances

10.10 Sight Distance at right-Skewed Intersections

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Do you have more questions? Get in touch!

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CONTACT:

Jill Asher

Research Engineer 

jill.asher@uky.edu