Cessna 310 pilot reported a near midair collision after ATC cleared the pilot to land and then direc...

Narrative:

This was a frightening misjudgment by controller.[I] arrived at ZZZ [in a] C310. My recollection of communications with tower may be incorrect.[runway] xx was the active. One (or maybe two) aircraft were ahead of me and requested [runway] xy. As I am based at [an FBO]; I too requested [runway] xy. I entered downwind and was cleared to land. On final; I observed an airliner taking off from [runway] xx. Initially [I] thought to go around; but [I] was well above the jet as it took off. It was evident I could safely land on [runway] xy. Then; tower ordered me to go around; which I did.I was cleared to land and did so without any problem. I asked tower why the conflict and was told I was too fast. In any case; regardless of airspeed; the controller must have been fully informed. [The controller] told me I was doing 150 [knots]. I doubt that as I do short final at 100 [knots]. While I name [the controller]; I mean no criticism. She was very professional and helpful.bottom line; fast or not; I find it incomprehensible the controller could clear me to land [runway] xy and the airliner to takeoff [runway] xx. As the airliner was on the ground; there could not have been urgency. Takeoff clearance could have been delayed 3 minutes with no significant effect.my suspicion is that the tower controller was new and inexperienced.

Original NASA ASRS Text

Title: Cessna 310 pilot reported a NMAC after ATC cleared the pilot to land and then directed a missed approach after clearing another aircraft for takeoff.

Narrative: This was a frightening misjudgment by controller.[I] arrived at ZZZ [in a] C310. My recollection of communications with Tower may be incorrect.[Runway] XX was the active. One (or maybe two) aircraft were ahead of me and requested [Runway] XY. As I am based at [an FBO]; I too requested [Runway] XY. I entered downwind and was cleared to land. On final; I observed an airliner taking off from [Runway] XX. Initially [I] thought to go around; but [I] was well above the jet as it took off. It was evident I could safely land on [Runway] XY. Then; Tower ordered me to go around; which I did.I was cleared to land and did so without any problem. I asked Tower why the conflict and was told I was too fast. In any case; regardless of airspeed; the controller must have been fully informed. [The controller] told me I was doing 150 [knots]. I doubt that as I do short final at 100 [knots]. While I name [the controller]; I mean no criticism. She was very professional and helpful.Bottom line; fast or not; I find it incomprehensible the controller could clear me to land [Runway] XY and the airliner to takeoff [Runway] XX. As the airliner was on the ground; there could not have been urgency. Takeoff clearance could have been delayed 3 minutes with no significant effect.My suspicion is that the Tower Controller was new and inexperienced.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1571094
Time
Date	201808
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna 310/T310C
Operating Under FAR Part	Part 91
Flight Phase	Landing
Flight Plan	None
Person 1
Function	Local Captain
Qualification	Flight Crew Multiengine Flight Crew Private Flight Crew Instrument
Experience	Flight Crew Last 90 Days 15 Flight Crew Total 7800 Flight Crew Type 4800
Events
Anomaly	ATC Issue All Types Conflict NMAC Deviation - Speed All Types
Miss Distance	Vertical 300

Cessna 310 pilot reported a near midair collision after ATC cleared the pilot to land and then directed a missed approach after clearing another aircraft for takeoff.