Deprecated: WPDataTables\Vendor\DI\create(): 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 35

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

Deprecated: WPDataTables\Vendor\DI\Definition\Source\Autowiring::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\Autowiring.php on line 23

Deprecated: WPDataTables\Vendor\DI\Definition\Source\DefinitionFile::__construct(): Implicitly marking parameter $autowiring 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\DefinitionFile.php on line 28

Deprecated: WPDataTables\Vendor\DI\Definition\Source\DefinitionArray::__construct(): Implicitly marking parameter $autowiring 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\DefinitionArray.php on line 39

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

Deprecated: WPDataTables\Vendor\DI\Definition\ObjectDefinition::setClassName(): 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 88

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

Deprecated: WPDataTables\Vendor\DI\Definition\Resolver\ParameterResolver::resolveParameters(): 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\Resolver\ParameterResolver.php on line 38

Deprecated: WPDataTables\Vendor\DI\Definition\Resolver\ParameterResolver::resolveParameters(): Implicitly marking parameter $method 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\ParameterResolver.php on line 38

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

Deprecated: WDTIntegration\Webhooks\WebhookDispatcherService::__construct(): Implicitly marking parameter $payloadBuilder 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

Deprecated: WDTIntegration\Webhooks\WebhooksAjaxController::__construct(): Implicitly marking parameter $manager 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\Controllers\WebhooksAjaxController.php on line 18

Deprecated: WDTIntegration\Webhooks\WebhooksAjaxController::__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\Controllers\WebhooksAjaxController.php on line 18

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

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30.10 Countermeasures for Improving Accessibility for Vision-Impaired Pedestrians at Roundabouts

30.12 Roundabout Lighting

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10.8 Sight Distance at Left-Skewed Intersections

10.6 Left-Turn Lanes at Non-Signalized Intersections

10.2 Acceptable Gap Distance

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29.2 Signals and Signal Timing for Bicycles at Intersections

29.4 Markings for Bicycles at Intersections

29.6 Bicycle Lanes

29.8 Separated Bicycle Lanes

29.10 Contraflow Bicycle Lanes

29.12 Shared Use Lanes

29.14 Shared Bus – Bicycle Lanes

29.16 Mitigating Heavy Vehicle Conflicts with Bicycles

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CONTACT:

Jill Asher

Research Engineer 

jill.asher@uky.edu