The Ajdovščina–Col route is situated in the western part of Slovenia, within the Vipava Valley. The road connects the town of Ajdovščina with the settlement of Col, passing through Budanje, Idrijska cesta, and Vipavska cesta. This area is characterized by its rolling hills, vineyards, and proximity to the Trnovo Forest Plateau. The region is notable for its Mediterranean-influenced climate and is a gateway to the Karst and Inner Carniola regions. An interactive map showing the route can be found at the end of the article.

The Ajdovščina–Col route, also referred to locally as the Ajdovščina 190, covers a distance of approximately 8.9 km (5.5 miles). The road surface is asphalt and is generally rated as excellent, providing a smooth and reliable riding experience. The route is predominantly wide for most of its length (about 90%), with some sections of medium width. The road features gentle curves, making it accessible for riders of varying skill levels, though it does not present the extreme twistiness found in some alpine passes. The elevation ranges from 99 m (325 ft) at its lowest point to 623 m (2,044 ft) at its highest, offering moderate altitude changes without steep gradients. Two lanes are present for the majority of the route (about 90%), supporting safe overtaking and comfortable passage for motorcycles and other vehicles alike.

The route passes through several settlements, including Col, Budanje, and the neighborhoods of Idrijska cesta and Vipavska cesta. Ajdovščina, the nearest major town, is known for its Roman heritage and the Ajdovščina Castle ruins. Col, located at the higher end of the route, serves as a starting point for excursions into the Trnovo Forest Plateau. The Vipava Valley itself is renowned for its wine production and unique wind phenomena, particularly the strong bora wind, which can occasionally affect riding conditions. Riders may also wish to explore the nearby Vipava Valley for its natural beauty and culinary offerings.

Speed limits along the Ajdovščina–Col route vary, with posted limits of 50 km/h (31 mph), 90 km/h (56 mph), and 40 km/h (25 mph) depending on the section and proximity to inhabited areas. Approximately 48% of the route passes through settlements, requiring heightened attention to local traffic and pedestrian activity. The road is open year-round and is not subject to regular seasonal closures; however, riders should be aware that winter conditions, particularly at higher elevations near Col, can occasionally lead to temporary restrictions due to snow or ice. There are no known event-related closures affecting this route on a regular basis. It is advisable to check local traffic updates before planning a ride, especially during adverse weather conditions.

There are currently no tolls or entrance fees required to ride the Ajdovščina–Col route. Riders should note that toll conditions may change in the future, and it is recommended to consult the official DARS website for the most up-to-date information on road tolls and vignettes in Slovenia. Standard road rules apply, and motorcycles must be properly registered and insured. Fuel stations and basic amenities are available in Ajdovščina, making it a convenient base for exploring the region.